{"id":183485,"date":"2026-08-18T09:01:28","date_gmt":"2026-08-18T09:01:28","guid":{"rendered":"https:\/\/pabau.com\/?p=183485"},"modified":"2026-08-18T13:19:12","modified_gmt":"2026-08-18T13:19:12","slug":"icd-10-code-s43121s","status":"publish","type":"post","link":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/","title":{"rendered":"ICD-10 code S43.121S: Right AC joint dislocation, sequela"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"ICD-10 code S43.121S: Dislocation of right acromioclavicular joint, sequela\",\"description\":\"ICD-10 code S43.121S (Dislocation of right acromioclavicular joint, 100%-200% displacement, sequela) is billable for FY2026. Reference guide covering 7th character rules, hierarchy, related codes, and documentation requirements.\",\"url\":\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s43121s\/\",\"audience\":{\"@type\":\"MedicalAudience\",\"audienceType\":\"Clinician\"},\"reviewedBy\":{\"@type\":\"Person\",\"name\":\"Dr Vanja Kitanova\",\"jobTitle\":\"Medical Reviewer\",\"affiliation\":{\"@type\":\"Organization\",\"name\":\"Pabau\"},\"knowsAbout\":[\"Medical Coding\",\"Clinical Documentation\",\"Healthcare Billing\",\"Clinical Safety\"],\"sameAs\":\"https:\/\/pabau.com\/blog\/author\/vanja\/\"},\"datePublished\":\"2026-02-15\",\"dateModified\":\"2026-08-18\"}<\/script>\n\n\n        <div id=\"key_takeaways\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/12\/Key-Takeaways-Icon.svg\" alt=\"Key takeaways\" height=\"42\" width=\"42\">\n                                <h3>Key takeaways<\/h3>\n            <\/div>\n            <div class=\"list\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>S43.121S is the billable ICD-10-CM code for a sequela of right acromioclavicular dislocation with 100%-200% displacement.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The 7th character S means the dislocation itself has healed and you are coding what it left behind.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Sequence the residual condition first and S43.121S second, and never use it during active treatment.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Subluxation is a separate family, coded S43.111 on the right and S43.112 on the left.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>The note has to show the side, a measured displacement percentage, and a stated link to the old injury.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">A patient dislocated the AC joint months ago. It&rsquo;s healed now, but the shoulder still aches and won&rsquo;t move the way it used to, so today&rsquo;s visit is about what got left behind, not the original injury. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That&rsquo;s what ICD-10 code S43.121S captures: the sequela of a right acromioclavicular dislocation, coded only once active treatment has closed.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here&rsquo;s how to tell sequela from subsequent before it costs you a claim.<\/p>\n\n\n\n<h2 id=\"h-what-s43-121s-covers-and-when-it-s-valid\" class=\"wp-block-heading\">What S43.121S covers, and when it&rsquo;s valid<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 code S43.121S is the billable diagnosis code for dislocation of the right acromioclavicular joint, 100%-200% displacement, sequela. The dislocation itself has healed. What you&rsquo;re coding now is the problem it left behind.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That distinction is where the coding usually goes wrong. Sequela (S) and subsequent encounter (D) get swapped constantly on shoulder claims, and payers notice. One says the injury is still under treatment. The other says treatment has finished.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S43.121S took effect on October 1, 2025 and stays valid through September 30, 2026. It&rsquo;s accepted on HIPAA-covered claims. In almost every case it follows the code for the residual condition rather than leading the claim.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Field<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Detail<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121S<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Full description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of right acromioclavicular joint, 100%-200% displacement, sequela<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes, a specific billable ICD-10-CM code<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Effective date<\/td>\n<td style=\"padding:12px 16px;color:#374151\">October 1, 2025 (FY2026)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Valid through<\/td>\n<td style=\"padding:12px 16px;color:#374151\">September 30, 2026<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Category<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43, dislocation and sprain of joints and ligaments of shoulder girdle<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">7th character<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S, sequela<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sequencing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Residual condition first, then S43.121S<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">HIPAA transactions<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Valid for submission<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"ICD-10 Revisions: Stay Updated or Fall Behind\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/bqAyb-BCA0w?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 id=\"h-what-each-character-in-the-code-tells-the-payer\" class=\"wp-block-heading\">What each character in the code tells the payer<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Read the code left to right and it gives you the body region, the joint, the severity, the side, and the phase of care. Each segment narrows the one before it.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S43<\/strong>: dislocation and sprain of joints and ligaments of the shoulder girdle, inside the S40-S49 block.<\/li>\n\n\n\n<li><strong>S43.1<\/strong>: subluxation and dislocation of the acromioclavicular joint.<\/li>\n\n\n\n<li><strong>S43.12<\/strong>: dislocation measured at 100% to 200% displacement. It sits above subluxation and below the greater-than-200% group.<\/li>\n\n\n\n<li><strong>S43.121<\/strong>: the right acromioclavicular joint.<\/li>\n\n\n\n<li><strong>S43.121S<\/strong>: sequela, so the visit is treating a late effect of the original injury.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">That 100% to 200% band lines up with a Grade III to IV separation in surgical grading, where the coracoclavicular ligaments are fully disrupted. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices running <a href=\"https:\/\/pabau.com\/industry\/sports-medicine-software\/\">sports medicine software<\/a> see this range often, since it&rsquo;s the grade that keeps athletes out of contact sport for months.<\/p>\n\n\n\n<h2 id=\"h-why-the-7th-character-does-the-heavy-lifting\" class=\"wp-block-heading\">Why the 7th character does the heavy lifting<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 7th character sets the phase of care, and it&rsquo;s the most common reason an S43.121 claim comes back. All three variants describe the same anatomy. Only the last character moves.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">7th character<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Encounter type<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">When it applies<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.121A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Active treatment for the dislocation, such as the ER visit, the first orthopedic visit, or surgery<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.121D<\/td>\n<td style=\"padding:12px 16px;color:#374151\">D<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The injury is still healing, and the visit is recovery monitoring, wound care, or post-op review<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.121S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The dislocation has healed, and the visit treats a late effect such as chronic pain or lost motion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Not every S-code stops at A, D, and S. Fracture families carry a longer list, including P for a healed-but-malunited fracture, as in <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s49109p\/\">S49.109P<\/a>. Dislocation codes keep it to three.<\/p>\n\n\n\n<h3 id=\"h-sequela-or-subsequent-one-question-settles-it\" class=\"wp-block-heading\">Sequela or subsequent? One question settles it<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ask what the visit is actually treating. If the answer is the dislocation, the character is D. When it&rsquo;s something the dislocation caused, use S.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Per the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/icd-10-codes\" target=\"_blank\" rel=\"nofollow noopener\">CMS ICD-10-CM guidelines<\/a>, you sequence the residual condition first, and the injury code carrying the S follows it. Flip that order and the claim reads as a bill for an injury that finished treatment months ago.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Clinical scenario<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Correct 7th character<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code to use<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Urgent care visit for acute right shoulder pain after a fall, with imaging confirming 100%-200% displacement<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A, initial<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121A<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Return visit two weeks after reduction for a wound check and range-of-motion assessment, injury still healing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">D, subsequent<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121D<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Visit six months later for chronic instability and reduced abduction, with the old dislocation documented as the cause<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121S plus the residual condition code, for example M25.311 for right shoulder instability<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Physical therapy for post-surgical stiffness after AC joint reconstruction, dislocation resolved<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121S plus the relevant functional limitation code<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n        <div id=\"pro_tip\">\n            <div class=\"img\">\n                <svg width=\"42\" height=\"42\" viewBox=\"0 0 42 42\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M12.6383 19.5238C12.6632 21.2071 12.8734 22.9926 12.0685 24.5523C11.0341 26.8917 8.45076 28.169 7.56292 30.5918C6.63082 33.1061 7.19505 36.185 9.31371 37.9786C10.929 39.5678 13.4183 39.9873 15.6061 39.5463C17.4592 39.073 19.1049 37.8388 19.9706 36.1608C20.781 34.7141 20.7866 32.9904 20.5293 31.3985C20.1006 29.3092 18.3775 27.8705 16.9807 26.362C14.8814 24.1005 14.6684 20.6854 15.595 17.8915C16.4331 15.4768 19.0026 14.2344 20.0425 11.9461C20.7202 10.6769 20.7506 9.20327 20.6068 7.81304C20.1864 5.40098 18.3139 3.23631 15.8716 2.56674C13.9742 2.03969 11.8224 2.30052 10.1739 3.37614C8.70522 4.34688 7.5878 5.86618 7.28356 7.58178C6.76081 9.82981 7.53525 12.2822 9.20307 13.9118C10.7658 15.4741 12.4806 17.2273 12.6383 19.5238Z\"\n                        fill=\"#2BADD4\" \/>\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M22.7048 19.8387C22.6822 22.3279 24.4507 24.6234 26.7493 25.4682C28.0531 25.961 29.4725 25.9183 30.7989 25.5487C32.0575 24.9955 33.301 24.2237 34.0069 23.0092C34.8384 21.5811 35.2982 19.8286 34.7832 18.2094C34.3611 16.2507 32.8739 14.6541 31.0275 13.9426C28.6736 12.9595 25.8073 13.7942 24.1719 15.7001C23.2022 16.8366 22.6143 18.3326 22.7048 19.8387Z\"\n                        fill=\"#2BADD4\" \/>\n                <\/svg>\n            <\/div>\n            <div class=\"text\">\n                <h3>Pro Tip<\/h3>\n                <p>When the note is ambiguous, ask the provider which problem the visit is treating. If they are still managing the dislocation, the character is D, no matter how long ago the injury happened. The switch to S comes when treatment for the injury has closed and a new complaint has taken over.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-where-s43-121s-sits-in-the-icd-10-cm-hierarchy\" class=\"wp-block-heading\">Where S43.121S sits in the ICD-10-CM hierarchy<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">S43.121S hangs off the injury chapter, S00-T88. Knowing the branch above it helps when documentation is thin and you have to step up a level to something less specific.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code level<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Chapter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S00-T88<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Injury, poisoning, and certain other consequences of external causes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Block<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S40-S49<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Injuries to the shoulder and upper arm<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Category<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation and sprain of joints and ligaments of shoulder girdle<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Subcategory<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.1<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subluxation and dislocation of acromioclavicular joint<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sub-subcategory<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.12<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of acromioclavicular joint, 100%-200% displacement<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Base code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right acromioclavicular joint, 100%-200% displacement<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.121S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sequela encounter, the code covered here<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 id=\"h-the-ac-joint-codes-you-ll-reach-for-next\" class=\"wp-block-heading\">The AC joint codes you&rsquo;ll reach for next<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Two things drive this family. The first is how far the joint displaced, the second is which side. Both come from the note, so read it before you pick a code.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Displacement<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Laterality<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.101_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified dislocation of right AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Not specified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.102_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified dislocation of left AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Not specified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.111_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subluxation of right AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">&lt;100%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.112_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subluxation of left AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">&lt;100%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.121_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of right AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">100%-200%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.122_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of left AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">100%-200%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.131_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of right AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">&gt;200%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S43.132_<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of left AC joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">&gt;200%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Note the top two rows. S43.101 and S43.102 carry no severity at all, so they say right or left and nothing more. Anything documented as less than 100% displacement belongs in the subluxation rows instead.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Add the 7th character to any base code above. S43.122S, for example, is the same picture as S43.121S on the left shoulder. The neighboring scapula subcategory reads the same way, right down to the sequela character, as in <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s43312s\/\">S43.312S<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Descriptions do shift between fiscal years, so confirm the wording before you submit. The <a href=\"https:\/\/icd10cmtool.cdc.gov\/\" target=\"_blank\" rel=\"nofollow noopener\">CDC ICD-10-CM tool<\/a> validates sub-classifications against the official tabular list.<\/p>\n\n\n\n<h2 id=\"h-dislocation-or-sprain-the-imaging-decides\" class=\"wp-block-heading\">Dislocation or sprain? The imaging decides<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If the note carries a measured displacement percentage, you&rsquo;re in the dislocation family. When it doesn&rsquo;t, the sprain codes at S43.5x apply. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reaching for a sprain code when a percentage is documented is one of the most common shoulder girdle coding errors.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Factor<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">AC joint dislocation (S43.12x)<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">AC joint sprain (S43.5x)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Clinical definition<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Loss of normal joint alignment with measurable displacement<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Ligament stretch or partial tear without measurable displacement<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Imaging requirement<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Displacement percentage documented from radiographic measurement<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Imaging may show soft tissue changes, with no percentage needed<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Displacement criterion<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Specified as &lt;100%, 100%-200%, or &gt;200%<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Not applicable<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code range<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.10x, S43.11x, S43.12x, S43.13x<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S43.50x, S43.51x, S43.52x<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Sequela code available<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes, 7th character S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes, 7th character S<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Common error<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Using a sprain code when a displacement percentage is documented<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Using a dislocation code with no imaging-confirmed displacement<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">\u00ab\u00a0Separation\u00a0\u00bb is the word that causes trouble, because providers use it for both. Query it whenever the note gives no measurement. Exam findings such as a positive <a href=\"https:\/\/pabau.com\/blog\/neers-test\/\">Neer&rsquo;s test<\/a> point to impingement, so they can&rsquo;t stand in for a displacement figure.<\/p>\n\n\n\n<h2 id=\"h-what-the-chart-must-show-to-support-s43-121s\" class=\"wp-block-heading\">What the chart must show to support S43.121S<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Five elements have to be in the record, and an auditor will look for every one of them:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Laterality.<\/strong> The record has to say right acromioclavicular joint. Bilateral or unspecified wording won&rsquo;t support this code.<\/li>\n\n\n\n<li><strong>Displacement.<\/strong> Imaging or clinical measurement has to place the displacement between 100% and 200%. Name the method, usually stress radiographs.<\/li>\n\n\n\n<li><strong>Causal link.<\/strong> One sentence has to connect today&rsquo;s complaint to the old dislocation. \u00ab\u00a0Chronic instability as a sequela of the March 2025 AC dislocation\u00a0\u00bb does the job.<\/li>\n\n\n\n<li><strong>Original injury date.<\/strong> The record should show when the dislocation happened, so the timeline supports a late effect rather than active care.<\/li>\n\n\n\n<li><strong>Residual condition code.<\/strong> You also need a code for the nature of the sequela, and it goes ahead of S43.121S on the claim.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">That causal sentence is easiest to capture where the residual is being treated. Practices running a <a href=\"https:\/\/pabau.com\/industry\/physical-therapy-emr\/\">physical therapy EMR<\/a> can carry the original injury date into every follow-up note, which saves the coder a chart hunt later.<\/p>\n\n\n\n<h2 id=\"h-how-the-claim-moves-and-where-it-stalls\" class=\"wp-block-heading\">How the claim moves, and where it stalls<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Picking the code is only half the work. Four handoffs sit between the appointment and the payment, and any of them can derail the claim.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The visit gets booked as a new problem, not as follow-up on the old injury.<\/li>\n\n\n\n<li>The provider documents the residual condition and names the dislocation behind it.<\/li>\n\n\n\n<li>The coder sequences the residual first, then S43.121S, then the procedure codes for the visit.<\/li>\n\n\n\n<li>The payer checks whether that diagnosis pairing supports the service billed.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Step two is where things usually break. Without the causal sentence, the claim looks like a bill for an injury that stopped being treated months ago.<\/p>\n\n\n\n<h3 id=\"h-before-you-submit-a-five-point-check\" class=\"wp-block-heading\">Before you submit: A five-point check<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Does the note name the side?<\/li>\n\n\n\n<li>Is there a displacement figure between 100% and 200%, with the method attached?<\/li>\n\n\n\n<li>Does one sentence tie today&rsquo;s complaint to the old dislocation?<\/li>\n\n\n\n<li>Is the residual condition code sitting ahead of S43.121S?<\/li>\n\n\n\n<li>Do the procedure codes match a late-effect visit rather than acute care?<\/li>\n<\/ol>\n\n\n\n<h3 id=\"h-three-mistakes-that-stall-these-claims\" class=\"wp-block-heading\">Three mistakes that stall these claims<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Using D on a closed injury.<\/strong> The visit gets billed as active care, then fails on review.<\/li>\n\n\n\n<li><strong>Leading with S43.121S.<\/strong> The residual condition belongs first, and sequencing <a href=\"https:\/\/pabau.com\/procedure-codes\/denial-codes-in-medical-billing\/\">denial codes<\/a> follow quickly when it isn&rsquo;t.<\/li>\n\n\n\n<li><strong>Sitting on the denial.<\/strong> Payers set their own window for corrections and appeals, so check the <a href=\"https:\/\/pabau.com\/blog\/timely-filing-limits\/\">timely filing limits<\/a> before you rework it.<\/li>\n<\/ol>\n\n\n\n<h2 id=\"h-index-paths-that-lead-to-the-ac-joint-codes\" class=\"wp-block-heading\">Index paths that lead to the AC joint codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">If you look up codes in the Alphabetic Index rather than searching the tabular list, four routes land on S43.121. Each one asks for the displacement level first, then the side.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Dislocation, acromioclavicular (joint)<\/strong>. The main path, which branches by displacement.<\/li>\n\n\n\n<li><strong>Separation, acromioclavicular joint<\/strong>. A cross-reference into the same S43.1x family.<\/li>\n\n\n\n<li><strong>Late effect, dislocation, shoulder<\/strong>. Routes to the sequela codes within S43.<\/li>\n\n\n\n<li><strong>Sequela, dislocation, acromioclavicular joint<\/strong>. The direct path to the 7th character S.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">The index sends \u00ab\u00a0separation\u00a0\u00bb to the dislocation entries, so separation language plus a measured percentage supports the S43.12x family. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Sprain codes sit apart, at S43.5x. When you need to confirm a description before committing to it, the <a href=\"https:\/\/www.aapc.com\/codes\/icd-10-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC code lookup<\/a> is quick.<\/p>\n\n\n        <div id=\"pro_tip\">\n            <div class=\"img\">\n                <svg width=\"42\" height=\"42\" viewBox=\"0 0 42 42\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M12.6383 19.5238C12.6632 21.2071 12.8734 22.9926 12.0685 24.5523C11.0341 26.8917 8.45076 28.169 7.56292 30.5918C6.63082 33.1061 7.19505 36.185 9.31371 37.9786C10.929 39.5678 13.4183 39.9873 15.6061 39.5463C17.4592 39.073 19.1049 37.8388 19.9706 36.1608C20.781 34.7141 20.7866 32.9904 20.5293 31.3985C20.1006 29.3092 18.3775 27.8705 16.9807 26.362C14.8814 24.1005 14.6684 20.6854 15.595 17.8915C16.4331 15.4768 19.0026 14.2344 20.0425 11.9461C20.7202 10.6769 20.7506 9.20327 20.6068 7.81304C20.1864 5.40098 18.3139 3.23631 15.8716 2.56674C13.9742 2.03969 11.8224 2.30052 10.1739 3.37614C8.70522 4.34688 7.5878 5.86618 7.28356 7.58178C6.76081 9.82981 7.53525 12.2822 9.20307 13.9118C10.7658 15.4741 12.4806 17.2273 12.6383 19.5238Z\"\n                        fill=\"#2BADD4\" \/>\n                    <path fill-rule=\"evenodd\" clip-rule=\"evenodd\"\n                        d=\"M22.7048 19.8387C22.6822 22.3279 24.4507 24.6234 26.7493 25.4682C28.0531 25.961 29.4725 25.9183 30.7989 25.5487C32.0575 24.9955 33.301 24.2237 34.0069 23.0092C34.8384 21.5811 35.2982 19.8286 34.7832 18.2094C34.3611 16.2507 32.8739 14.6541 31.0275 13.9426C28.6736 12.9595 25.8073 13.7942 24.1719 15.7001C23.2022 16.8366 22.6143 18.3326 22.7048 19.8387Z\"\n                        fill=\"#2BADD4\" \/>\n                <\/svg>\n            <\/div>\n            <div class=\"text\">\n                <h3>Pro Tip<\/h3>\n                <p>Check your payer&rsquo;s local coverage determination before the first sequela claim goes out. Coverage for the imaging and therapy attached to a late-effect visit varies by payer, and the LCD tells you what documentation they expect to see. Five minutes at onboarding saves a round of denials later.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-how-pabau-keeps-sequela-coding-straight-from-note-to-claim\" class=\"wp-block-heading\">How Pabau keeps sequela coding straight from note to claim<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most practices split this job across two systems. The note lives in the clinical record and the claim gets built somewhere else. Someone then retypes the side, the displacement, and the encounter type from a printout.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau keeps both in the same place. The original dislocation, the date it happened, the imaging report, and today&rsquo;s complaint all sit in one file. Pabau&rsquo;s <a href=\"https:\/\/pabau.com\/features\/medical-records-management\/\">client records<\/a> hold that history, so the causal sentence has something to point at.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Note templates can prompt for laterality and displacement while the patient is still in the room. Invoicing and <a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">claims management<\/a> run from the same record, so what got documented is what goes out. Nobody rebuilds the story at billing time.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/cdn.pabau.com\/cdn\/attachments\/pulse\/content-engine\/diagnostic_codes\/icd-10-code-s43121s\/automate-claims-through-healthcode.webp\" alt=\"Automate claims and billing with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau builds the insurer invoice straight from the completed visit, so the coded diagnosis and the charge never drift apart.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n        <div id=\"book_a_demo\">\n            <div class=\"left-side\">\n                <div class=\"logo\">\n                    <img decoding=\"async\"\n                        src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Logo.svg\"\n                        alt=\"Logo\"\n                        loading=\"lazy\"\n                    \/>\n                <\/div>\n\n                <h3 class=\"heading\">\n                    Keep shoulder injury coding straight from note to claim                <\/h3>\n\n                <p class=\"description\">\n                    Pabau holds clinical notes, prior injury history, and invoicing in one client record. Capture laterality, displacement, and encounter type during the visit, so billing works from the note instead of a retyped summary.                <\/p>\n\n                <div class=\"button-group\">\n                    <a href=\"\/book-demo\/\" class=\"btn btn-scale-effect btn-cta-color btn-md\">\n                        <span class=\"btn-text\">Book a demo<\/span>\n                        <div class=\"btn-icon btn-icon-right\" aria-hidden=\"true\">\n                            <svg\n                                width=\"14\"\n                                height=\"12\"\n                                viewBox=\"0 0 14 12\"\n                                fill=\"none\"\n                                xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\n                            >\n                                <path\n                                    d=\"M0.75 4.77295C0.335786 4.77295 0 5.10874 0 5.52295C0 5.93716 0.335786 6.27295 0.75 6.27295V5.52295V4.77295ZM13.2803 6.05328C13.5732 5.76039 13.5732 5.28551 13.2803 4.99262L8.50736 0.219648C8.21447 -0.073245 7.73959 -0.073245 7.4467 0.219648C7.15381 0.512542 7.15381 0.987415 7.4467 1.28031L11.6893 5.52295L7.4467 9.76559C7.15381 10.0585 7.15381 10.5334 7.4467 10.8263C7.73959 11.1191 8.21447 11.1191 8.50736 10.8263L13.2803 6.05328ZM0.75 5.52295V6.27295L12.75 6.27295V5.52295V4.77295L0.75 4.77295V5.52295Z\"\n                                    fill=\"currentColor\"\n                                ><\/path>\n                            <\/svg>\n                        <\/div>\n                    <\/a>\n                <\/div>\n            <\/div>\n\n            <div class=\"right-side\">\n                <img decoding=\"async\"\n                    src=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/01\/Home-Page-Concept-4.webp\"\n                    alt=\"Pabau clinical documentation and billing workflow\"\n                    loading=\"lazy\"\n                \/>\n            <\/div>\n        <\/div>\n        \n\n\n<h2 id=\"h-conclusion\" class=\"wp-block-heading\">Conclusion<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Treat the causal sentence as the deliverable. Get the provider to write it while the patient is still in the room, and every coding decision after that becomes mechanical. Without it, picking the perfect code won&rsquo;t save the claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">There&rsquo;s a trade-off worth remembering too. A narrow code like S43.121S pays well for specificity, but it&rsquo;s only ever as strong as the chart behind it.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Build the prompts into the note and you stop guessing at billing time. <a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau keeps the injury history, the note, and the invoice in one client record.<\/p>\n\n\n        <div id=\"expert_picks\">\n            <div class=\"header\">\n                                    <img decoding=\"async\" src=\"https:\/\/pabau.com\/wp-content\/uploads\/2025\/11\/Expert-Picks.svg\" alt=\"Continue your research\" height=\"42\" width=\"42\">\n                                <h3>Continue your research<\/h3>\n            <\/div>\n            <div class=\"content\">\n                                                            <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Coding the surgery that follows chronic shoulder instability?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-23462\/\">CPT code 23462<\/a> walks through the reimbursement, RVUs, and modifiers for anterior capsulorrhaphy.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Need another right-shoulder injury code from the same block?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s46191a\/\">S46.191A<\/a> covers a long head of biceps injury at the initial encounter.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Wondering what the 7th characters beyond A, D, and S do?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42463g\/\">S42.463G<\/a> shows how delayed healing is coded on a humerus fracture.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Want to see how a diagnosis code actually reaches the payer?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/837-file\/\">The 837 claim file<\/a> breaks down the electronic format your codes travel in.<\/p>\n                        <\/div>\n                                                                                <div class=\"item\">\n                            <div>\n                                <svg width=\"20\" height=\"27\" viewBox=\"0 0 20 27\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\">\n                                    <path\n                                        d=\"M18.6223 14.3857C19.1246 13.8975 19.1246 13.1045 18.6223 12.6162L12.1938 6.36621C11.6915 5.87793 10.8759 5.87793 10.3737 6.36621C9.87143 6.85449 9.87143 7.64746 10.3737 8.13574L14.6125 12.2529H2.28571C1.57455 12.2529 1 12.8115 1 13.5029C1 14.1943 1.57455 14.7529 2.28571 14.7529H14.6085L10.3777 18.8701C9.87545 19.3584 9.87545 20.1514 10.3777 20.6396C10.8799 21.1279 11.6955 21.1279 12.1978 20.6396L18.6263 14.3896L18.6223 14.3857Z\"\n                                        fill=\"#54B2D3\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p><strong>Getting therapy for a late-effect shoulder approved?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/prior-authorization-process\/\">The prior authorization process<\/a> covers what payers ask for and how to avoid a delay.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-frequently-asked-questions\" class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1787041151203\"><h3 class=\"schema-faq-question\">How long after the injury can you start using S43.121S?<\/h3> <p class=\"schema-faq-answer\">ICD-10-CM sets no waiting period. What matters is that active treatment has ended and the note ties the current problem to the old dislocation.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787041151204\"><h3 class=\"schema-faq-question\">Can S43.121A and S43.121S appear on the same claim?<\/h3> <p class=\"schema-faq-answer\">No. The acute injury code is never reported alongside the code for its own late effect. Once you code the sequela, the initial-encounter code drops off.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787041151205\"><h3 class=\"schema-faq-question\">Is AC joint subluxation coded with S43.121S?<\/h3> <p class=\"schema-faq-answer\">No. Subluxation has its own subcategory, S43.111 on the right and S43.112 on the left. S43.121S is only for a dislocation measured at 100%-200% displacement.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787041151206\"><h3 class=\"schema-faq-question\">Is there a code for an unspecified side?<\/h3> <p class=\"schema-faq-answer\">Yes. S43.129 covers an unspecified acromioclavicular joint at the same displacement. Most payers expect laterality, so query the provider rather than defaulting to it.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1787041151207\"><h3 class=\"schema-faq-question\">Which procedure codes usually sit alongside S43.121S?<\/h3> <p class=\"schema-faq-answer\">Late-effect visits are normally office evaluations, imaging, or therapy sessions, so those codes pair with it. Reconstruction codes appear only when a surgeon repairs the instability.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. Read more on sequencing, documentation, and the denial triggers.<\/p>\n","protected":false},"author":85,"featured_media":183483,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"82","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1549,1550],"tags":[1543,1305,2508,1666,3271],"class_list":["post-183485","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diagnostic-codes","category-icd-10-cm","tag-clinical-documentation","tag-icd-10-codes","tag-medical-coding","tag-orthopedic-billing","tag-orthopedic-trauma"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>ICD-10 code S43.121S: Right AC joint dislocation, sequela<\/title>\n<meta name=\"description\" content=\"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICD-10 code S43.121S: Right AC joint dislocation, sequela\" \/>\n<meta property=\"og:description\" content=\"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/\" \/>\n<meta property=\"og:site_name\" content=\"Pabau\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/Pabau\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-08-18T09:01:28+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-18T13:19:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"630\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Monika Lazarevska\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:site\" content=\"@pabaucrm\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Monika Lazarevska\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"10 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/\"},\"author\":{\"name\":\"Monika Lazarevska\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/person\\\/5763062f66fccbf75a390f99ee0b985a\"},\"headline\":\"ICD-10 code S43.121S: Right AC joint dislocation, sequela\",\"datePublished\":\"2026-08-18T09:01:28+00:00\",\"dateModified\":\"2026-08-18T13:19:12+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/\"},\"wordCount\":2194,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s43121s.webp\",\"keywords\":[\"Clinical Documentation\",\"ICD-10 codes\",\"Medical Coding\",\"Orthopedic Billing\",\"Orthopedic trauma\"],\"articleSection\":[\"Diagnostic Codes\",\"ICD-10-CM\"],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/\",\"name\":\"ICD-10 code S43.121S: Right AC joint dislocation, sequela\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s43121s.webp\",\"datePublished\":\"2026-08-18T09:01:28+00:00\",\"dateModified\":\"2026-08-18T13:19:12+00:00\",\"description\":\"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.\",\"mainEntity\":[{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151203\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151204\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151205\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151206\"},{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151207\"}],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#primaryimage\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s43121s.webp\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s43121s.webp\",\"width\":1200,\"height\":630},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#website\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/\",\"name\":\"Pabau\",\"description\":\"Clinic Software for your Business | Go Paperless Today\",\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/pabau.com\\\/fr\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\",\"name\":\"Pabau\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Logo-4-e1654525062364.png\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2022\\\/05\\\/Logo-4-e1654525062364.png\",\"width\":736,\"height\":195,\"caption\":\"Pabau\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/Pabau\\\/\",\"https:\\\/\\\/x.com\\\/pabaucrm\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/pabau-ltd\\\/\",\"https:\\\/\\\/www.instagram.com\\\/pabausoftware\\\/\"],\"description\":\"Pabau is an all-in-one healthcare practice management software platform designed for clinics, medspas, therapists, and medical professionals. It combines scheduling, electronic health records, clinical forms, payments, marketing automation, reporting, and patient engagement tools into one secure cloud system to help practices streamline operations and grow their business.\",\"foundingDate\":\"2011-10-20\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"201\",\"maxValue\":\"500\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/person\\\/5763062f66fccbf75a390f99ee0b985a\",\"name\":\"Monika Lazarevska\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/07\\\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg\",\"caption\":\"Monika Lazarevska\"},\"description\":\"Monika Lazarevska writes content for owners and healthcare professionals who want clear, no-fluff content that actually helps them run their practice better. With a background in storytelling and SEO, she knows how to make even the driest topics worth reading. Off the clock, you'll find her in a caf\u00e9 somewhere in Europe, probably with a good book and an even better coffee.\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/blog\\\/author\\\/monika-lazarevska\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151203\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151203\",\"name\":\"How long after the injury can you start using S43.121S?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ICD-10-CM sets no waiting period. What matters is that active treatment has ended and the note ties the current problem to the old dislocation.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151204\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151204\",\"name\":\"Can S43.121A and S43.121S appear on the same claim?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The acute injury code is never reported alongside the code for its own late effect. Once you code the sequela, the initial-encounter code drops off.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151205\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151205\",\"name\":\"Is AC joint subluxation coded with S43.121S?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Subluxation has its own subcategory, S43.111 on the right and S43.112 on the left. S43.121S is only for a dislocation measured at 100%-200% displacement.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151206\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151206\",\"name\":\"Is there a code for an unspecified side?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. S43.129 covers an unspecified acromioclavicular joint at the same displacement. Most payers expect laterality, so query the provider rather than defaulting to it.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151207\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/diagnostic-codes\\\/icd-10-code-s43121s\\\/#faq-question-1787041151207\",\"name\":\"Which procedure codes usually sit alongside S43.121S?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Late-effect visits are normally office evaluations, imaging, or therapy sessions, so those codes pair with it. Reconstruction codes appear only when a surgeon repairs the instability.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"ICD-10 code S43.121S: Right AC joint dislocation, sequela","description":"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/","og_locale":"fr_FR","og_type":"article","og_title":"ICD-10 code S43.121S: Right AC joint dislocation, sequela","og_description":"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.","og_url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/","og_site_name":"Pabau","article_publisher":"https:\/\/www.facebook.com\/Pabau\/","article_published_time":"2026-08-18T09:01:28+00:00","article_modified_time":"2026-08-18T13:19:12+00:00","og_image":[{"width":1200,"height":630,"url":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp","type":"image\/webp"}],"author":"Monika Lazarevska","twitter_card":"summary_large_image","twitter_creator":"@pabaucrm","twitter_site":"@pabaucrm","twitter_misc":{"\u00c9crit par":"Monika Lazarevska","Dur\u00e9e de lecture estim\u00e9e":"10 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#article","isPartOf":{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/"},"author":{"name":"Monika Lazarevska","@id":"https:\/\/pabau.com\/fr\/#\/schema\/person\/5763062f66fccbf75a390f99ee0b985a"},"headline":"ICD-10 code S43.121S: Right AC joint dislocation, sequela","datePublished":"2026-08-18T09:01:28+00:00","dateModified":"2026-08-18T13:19:12+00:00","mainEntityOfPage":{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/"},"wordCount":2194,"publisher":{"@id":"https:\/\/pabau.com\/fr\/#organization"},"image":{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#primaryimage"},"thumbnailUrl":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp","keywords":["Clinical Documentation","ICD-10 codes","Medical Coding","Orthopedic Billing","Orthopedic trauma"],"articleSection":["Diagnostic Codes","ICD-10-CM"],"inLanguage":"fr-FR"},{"@type":["WebPage","FAQPage"],"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/","url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/","name":"ICD-10 code S43.121S: Right AC joint dislocation, sequela","isPartOf":{"@id":"https:\/\/pabau.com\/fr\/#website"},"primaryImageOfPage":{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#primaryimage"},"image":{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#primaryimage"},"thumbnailUrl":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp","datePublished":"2026-08-18T09:01:28+00:00","dateModified":"2026-08-18T13:19:12+00:00","description":"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.","mainEntity":[{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151203"},{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151204"},{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151205"},{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151206"},{"@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151207"}],"inLanguage":"fr-FR","potentialAction":[{"@type":"ReadAction","target":["https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/"]}]},{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#primaryimage","url":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp","contentUrl":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s43121s.webp","width":1200,"height":630},{"@type":"WebSite","@id":"https:\/\/pabau.com\/fr\/#website","url":"https:\/\/pabau.com\/fr\/","name":"Pabau","description":"Clinic Software for your Business | Go Paperless Today","publisher":{"@id":"https:\/\/pabau.com\/fr\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/pabau.com\/fr\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"fr-FR"},{"@type":"Organization","@id":"https:\/\/pabau.com\/fr\/#organization","name":"Pabau","url":"https:\/\/pabau.com\/fr\/","logo":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/pabau.com\/fr\/#\/schema\/logo\/image\/","url":"https:\/\/pabau.com\/wp-content\/uploads\/2022\/05\/Logo-4-e1654525062364.png","contentUrl":"https:\/\/pabau.com\/wp-content\/uploads\/2022\/05\/Logo-4-e1654525062364.png","width":736,"height":195,"caption":"Pabau"},"image":{"@id":"https:\/\/pabau.com\/fr\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/Pabau\/","https:\/\/x.com\/pabaucrm","https:\/\/www.linkedin.com\/company\/pabau-ltd\/","https:\/\/www.instagram.com\/pabausoftware\/"],"description":"Pabau is an all-in-one healthcare practice management software platform designed for clinics, medspas, therapists, and medical professionals. It combines scheduling, electronic health records, clinical forms, payments, marketing automation, reporting, and patient engagement tools into one secure cloud system to help practices streamline operations and grow their business.","foundingDate":"2011-10-20","numberOfEmployees":{"@type":"QuantitativeValue","minValue":"201","maxValue":"500"}},{"@type":"Person","@id":"https:\/\/pabau.com\/fr\/#\/schema\/person\/5763062f66fccbf75a390f99ee0b985a","name":"Monika Lazarevska","image":{"@type":"ImageObject","inLanguage":"fr-FR","@id":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/07\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg","url":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/07\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg","contentUrl":"https:\/\/pabau.com\/wp-content\/uploads\/2026\/07\/cropped-Monika-Lazarevska-skala-2-1-e1783430903842-1-96x96.jpg","caption":"Monika Lazarevska"},"description":"Monika Lazarevska writes content for owners and healthcare professionals who want clear, no-fluff content that actually helps them run their practice better. With a background in storytelling and SEO, she knows how to make even the driest topics worth reading. Off the clock, you'll find her in a caf\u00e9 somewhere in Europe, probably with a good book and an even better coffee.","url":"https:\/\/pabau.com\/fr\/blog\/author\/monika-lazarevska\/"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151203","position":1,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151203","name":"How long after the injury can you start using S43.121S?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"ICD-10-CM sets no waiting period. What matters is that active treatment has ended and the note ties the current problem to the old dislocation.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151204","position":2,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151204","name":"Can S43.121A and S43.121S appear on the same claim?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. The acute injury code is never reported alongside the code for its own late effect. Once you code the sequela, the initial-encounter code drops off.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151205","position":3,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151205","name":"Is AC joint subluxation coded with S43.121S?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"No. Subluxation has its own subcategory, S43.111 on the right and S43.112 on the left. S43.121S is only for a dislocation measured at 100%-200% displacement.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151206","position":4,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151206","name":"Is there a code for an unspecified side?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. S43.129 covers an unspecified acromioclavicular joint at the same displacement. Most payers expect laterality, so query the provider rather than defaulting to it.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"},{"@type":"Question","@id":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151207","position":5,"url":"https:\/\/pabau.com\/fr\/diagnostic-codes\/icd-10-code-s43121s\/#faq-question-1787041151207","name":"Which procedure codes usually sit alongside S43.121S?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Late-effect visits are normally office evaluations, imaging, or therapy sessions, so those codes pair with it. Reconstruction codes appear only when a surgeon repairs the instability.","inLanguage":"fr-FR"},"inLanguage":"fr-FR"}]}},"yoast":{"focus_keyword":"ICD-10 Code S43.121S","seo_title":"ICD-10 code S43.121S: Right AC joint dislocation, sequela","meta_description":"S43.121S covers the sequela of a right AC joint dislocation at 100%-200% displacement. See sequencing, documentation, and denials.","content_score":"90","is_cornerstone":"","related_keyphrases":[{"keyword":"sequela icd 10 coding guidelines","score":56},{"keyword":"7th character icd 10 sequela","score":56},{"keyword":"icd 10 ac joint dislocation","score":56}]},"_links":{"self":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/183485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/users\/85"}],"replies":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/comments?post=183485"}],"version-history":[{"count":4,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/183485\/revisions"}],"predecessor-version":[{"id":184239,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/posts\/183485\/revisions\/184239"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/media\/183483"}],"wp:attachment":[{"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/media?parent=183485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/categories?post=183485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pabau.com\/fr\/wp-json\/wp\/v2\/tags?post=183485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}