{"id":178550,"date":"2026-08-14T09:13:15","date_gmt":"2026-08-14T09:13:15","guid":{"rendered":"https:\/\/pabau.com\/?p=178550"},"modified":"2026-08-14T09:54:17","modified_gmt":"2026-08-14T09:54:17","slug":"icd-10-code-s42012p","status":"publish","type":"post","link":"https:\/\/pabau.com\/nl\/diagnostic-codes\/icd-10-code-s42012p\/","title":{"rendered":"ICD-10 code S42.012P: Anterior displaced left clavicle fracture with malunion"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"ICD-10 code S42.012P: Anterior displaced left clavicle fracture with malunion\",\"description\":\"ICD-10 code S42.012P is a billable ICD-10-CM diagnosis code for an anterior displaced fracture of the sternal end of the left clavicle, reported at a subsequent encounter where the fracture healed in malunion. Valid for the FY2026 code set.\",\"url\":\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42012p\/\",\"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\":\"2026-08-14\",\"dateModified\":\"2026-08-14\"}<\/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>S42.012P describes an anterior displaced fracture of the sternal end of the left clavicle. It applies at a follow-up visit, after the bone healed out of position.<\/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 P means malunion. Nonunion is a different finding and takes K, so the two are never interchangeable.<\/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 must state four things: left side, sternal end, anterior displacement, and malunion at a subsequent 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=\"#3D3D46\" \/>\n                                <\/svg>\n                            <\/div>\n                            <p>Malunion must come from the treating provider. A coder cannot read it off an imaging report alone.<\/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>Practice management software like Pabau keeps records, coding, and claims in one system. That makes follow-up billing quicker to check and submit.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">ICD-10 code S42.012P describes an anterior displaced fracture of the sternal end of the left clavicle. You report it at a subsequent encounter, once that fracture has healed in the wrong position.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Malunion is where these claims come unstuck. Payers want the word itself in the provider&#8217;s note, not a hint of it buried in the imaging. A report that reads &#8220;healed with angulation&#8221; will not carry the P character on its own.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The rest of the code is mechanical. Side, site, displacement direction, and encounter type all sit in the descriptor. Each one has to appear somewhere in the chart.<\/p>\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-s42-012p-is-billable-for-the-fy2026-code-set\" class=\"wp-block-heading\">S42.012P is billable for the FY2026 code set<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Yes, S42.012P is a billable and specific ICD-10-CM code. It is valid for the FY2026 code set, which took effect on October 1, 2025. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practices can report it on Medicare, Medicaid, and commercial claims. The <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/icd-10-codes\" target=\"_blank\" rel=\"nofollow noopener\">CMS ICD-10 codes page<\/a> carries the current release files.<\/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\">S42.012P<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Short description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Ant displ fx of sternal end of l clavicle, subs for fx w malunion<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Long description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Anterior displaced fracture of sternal end of left clavicle, subsequent encounter for fracture with malunion<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable and specific<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Code set<\/td>\n<td style=\"padding:12px 16px;color:#374151\">FY2026, in effect from October 1, 2025<\/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 type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">ICD-10-CM, the US clinical modification<\/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\">P, subsequent encounter for fracture with malunion<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 id=\"h-what-each-part-of-the-descriptor-actually-means\" class=\"wp-block-heading\">What each part of the descriptor actually means<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The descriptor packs five separate clinical facts into eight characters. Read them one at a time and the code stops looking arbitrary.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Anterior displaced:<\/strong> the broken fragment has shifted forward. &#8220;Displaced&#8221; rules out the nondisplaced codes, and &#8220;anterior&#8221; fixes the direction.<\/li>\n\n\n\n<li><strong>Sternal end:<\/strong> the inner end of the collarbone, nearest the breastbone. Some surgeons call it the medial or sternoclavicular end.<\/li>\n\n\n\n<li><strong>Left clavicle:<\/strong> laterality lives in the 6th character. The digit 2 in S42.012 carries both the anterior displacement and the left side.<\/li>\n\n\n\n<li><strong>Subsequent encounter:<\/strong> definitive treatment is done. The patient is now in the healing or recovery phase.<\/li>\n\n\n\n<li><strong>Malunion:<\/strong> the bone knitted back together, but crooked. Healing finished, alignment did not.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Charts rarely use that exact wording. You will see &#8220;malunited left medial clavicle fracture&#8221; or &#8220;healed left sternoclavicular fracture in malposition&#8221; instead. Either phrasing works, as long as the four coded facts are all there.<\/p>\n\n\n\n<h2 id=\"h-the-7th-character-is-where-clavicle-claims-go-wrong\" class=\"wp-block-heading\">The 7th character is where clavicle claims go wrong<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The 7th character tells the payer where the patient sits in the healing process. It has nothing to do with how many times the provider has seen them.<\/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\">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\">Meaning<\/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 to use it<\/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\">A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter for closed fracture<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Active treatment of a closed fracture<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">B<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter for open fracture<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Active treatment where the bone broke the skin<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">D<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter, routine healing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Follow-up visit with healing on track<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">G<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter, delayed healing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Union is slower than the surgeon expected<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">K<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter, nonunion<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The bone ends never joined<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">P<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent encounter, malunion<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Healing finished, but in the wrong position<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A late effect, treated after healing is complete<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Category S42 uses the plain closed and open pair at the start. A covers a closed fracture on first treatment, and B covers an open one, as in <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42009b\/\">S42.009B<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">You will never see Q or R in the shoulder chapter, though. Those extra malunion characters follow the Gustilo open fracture classification. It applies to the forearm, femur, and lower leg only. <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s72452q\/\">S72.452Q<\/a> is one of them, and it is a useful contrast when you work across body regions.<\/p>\n\n\n\n<h3 id=\"h-malunion-healed-crooked-nonunion-never-healed-at-all\" class=\"wp-block-heading\">Malunion healed crooked, nonunion never healed at all<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Both characters describe a fracture that did not end well, but they are not interchangeable. Nonunion means the bone gave up on healing, and it takes the K character. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Malunion means it healed badly instead, which is what the P character records. That difference drives both the code and the treatment plan.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Radiology often sits on the fence. Reports describing &#8220;abnormal healing&#8221; or &#8220;residual angulation&#8221; support neither character by themselves. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Query the provider before you pick one, because assigning P without the word malunion is exactly what auditors look for. The shoulder girdle carries its own nonunion codes too, such as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42131k\/\">S42.131K<\/a>.<\/p>\n\n\n\n<h2 id=\"h-where-s42-012p-sits-in-the-s42-family\" class=\"wp-block-heading\">Where S42.012P sits in the S42 family<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Parent codes carry instructional notes, so it pays to know the branch you are standing on. The path runs like this:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S00-T88:<\/strong> injury, poisoning, and certain other consequences of external causes<\/li>\n\n\n\n<li><strong>S40-S49:<\/strong> injuries to the shoulder and upper arm<\/li>\n\n\n\n<li><strong>S42:<\/strong> fracture of shoulder and upper arm<\/li>\n\n\n\n<li><strong>S42.0:<\/strong> fracture of clavicle<\/li>\n\n\n\n<li><strong>S42.01:<\/strong> fracture of sternal end of clavicle<\/li>\n\n\n\n<li><strong>S42.012:<\/strong> anterior displaced fracture of sternal end of left clavicle<\/li>\n\n\n\n<li><strong>S42.012P:<\/strong> subsequent encounter for fracture with malunion<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-sibling-codes-you-switch-between-as-the-patient-heals\" class=\"wp-block-heading\">Sibling codes you switch between as the patient heals<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">One fracture can move through four or five codes before the file closes. The base code stays put and the 7th character does the work.<\/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\">Encounter and healing status<\/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\">Typical visit<\/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\">S42.012A<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter, closed fracture<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Emergency room or first orthopedic consult<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012B<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial encounter, open fracture<\/td>\n<td style=\"padding:12px 16px;color:#374151\">First treatment where the skin was broken<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012D<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent, routine healing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Six-week review with a clean X-ray<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012G<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent, delayed healing<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Callus forming slower than expected<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012K<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent, nonunion<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical planning for a bone that never joined<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012P<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent, malunion (this code)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Follow-up where the bone healed out of position<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.012S<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Late effect treated long after healing<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S42.011P<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Subsequent, malunion, right side<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Same finding on the opposite clavicle<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Move to a different part of the collarbone and the base code changes with it. A late effect at the outer end, for instance, belongs to <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42032s\/\">S42.032S<\/a>. Site, side, and healing status each shift the code independently.<\/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>When imaging shows the clavicle healed out of position, read the surgeon&#8217;s own words before you code. &#8220;Malunion&#8221; or &#8220;healed in malposition&#8221; supports P. &#8220;Offset alignment&#8221; on its own does not. Send a query instead, and hold the claim until it comes back signed.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-four-details-your-provider-note-must-state\" class=\"wp-block-heading\">Four details your provider note must state<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A seven-character trauma code fails on one missing detail. For S42.012P, four things need to be explicit in the note before you assign it.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Laterality:<\/strong> the note names the left clavicle. &#8220;Clavicle fracture&#8221; on its own is not enough.<\/li>\n\n\n\n<li><strong>Anatomical site:<\/strong> the medial or sternal end. Mid-shaft and lateral end fractures map to other S42.0 codes.<\/li>\n\n\n\n<li><strong>Displacement direction:<\/strong> anterior. Posterior and unspecified displacement have their own codes.<\/li>\n\n\n\n<li><strong>Encounter and healing status:<\/strong> active treatment is finished, and the provider has documented malunion rather than nonunion or routine healing.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Those four facts are usually scattered across the operative note, the follow-up note, and the imaging report. Pulling them together is far quicker when <a href=\"https:\/\/pabau.com\/features\/medical-records-management\/\">patient records<\/a> and imaging sit in one system rather than three.<\/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-s42012p\/comprehensive-emr-patient-record-management.webp\" alt=\"Comprehensive EMR and patient record management\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s client records keep the follow-up note and imaging report together, so a coder can check every detail at once.<\/em><\/figcaption><\/figure>\n\n\n\n<div style=\"height:35px;width:800px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 id=\"h-initial-or-subsequent-three-questions-settle-it\" class=\"wp-block-heading\">Initial or subsequent? Three questions settle it<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Work through them in order and the character picks itself.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Is the patient still under active treatment for this fracture?<\/strong> If so, use A or B, however many visits have gone by.<\/li>\n\n\n\n<li><strong>Has the provider described how it healed?<\/strong> Routine healing takes D, and slow union takes G.<\/li>\n\n\n\n<li><strong>Does the note say malunion?<\/strong> Only then does P apply.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Two traps hide inside that sequence. First, a patient who put off care still gets the initial encounter character, even if the injury happened months ago. Second, a fresh face in your practice does not reset anything. Treatment phase decides the character, not the relationship with the provider.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Other injuries treated at the same visit keep their own characters. A bruised upper arm coded as <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s40022a\/\">S40.022A<\/a> can sit happily on the same claim as a malunion code.<\/p>\n\n\n\n<h2 id=\"h-how-a-malunion-claim-moves-from-note-to-payment\" class=\"wp-block-heading\">How a malunion claim moves from note to payment<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Coding is one stop on a longer trip. Knowing the whole route tells you where a clavicle claim tends to stall.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>The provider signs the note.<\/strong> Nothing downstream can be fixed if the malunion wording never lands here.<\/li>\n\n\n\n<li><strong>Charge entry.<\/strong> The coder pairs S42.012P with the office visit or procedure code performed that day.<\/li>\n\n\n\n<li><strong>Claim scrubbing.<\/strong> Your billing system checks the code is valid for the date of service and complete to seven characters.<\/li>\n\n\n\n<li><strong>Clearinghouse edits.<\/strong> Front-end rejections land here, usually within a day, with a reason code attached.<\/li>\n\n\n\n<li><strong>Payer adjudication.<\/strong> The payer weighs the diagnosis against the service billed, then pays, adjusts, or denies.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">A rejection at step four never reaches a claims examiner, so it is cheap and fast to correct. Denials at step five cost far more, because they usually need records attached and a written appeal. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In smaller musculoskeletal teams, such as an <a href=\"https:\/\/pabau.com\/industry\/osteopathy-practice-software\/\">osteopathy practice<\/a>, the same person often codes the visit and chases the rework.<\/p>\n\n\n\n<h2 id=\"h-run-this-check-before-you-submit\" class=\"wp-block-heading\">Run this check before you submit<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Five quick checks catch most of what comes back. Work through them at charge entry, not after the denial arrives.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>The date of service falls inside the fiscal year this code is valid for. Code sets refresh every October 1.<\/li>\n\n\n\n<li>The diagnosis pointer links S42.012P to the right service line on the claim.<\/li>\n\n\n\n<li>Laterality on the claim matches the note. Left in the chart, left in the code.<\/li>\n\n\n\n<li>The malunion wording is signed off, not sitting in an open provider query.<\/li>\n\n\n\n<li>No unspecified code has crept in where the chart documents something specific.<\/li>\n<\/ol>\n\n\n\n<h2 id=\"h-mistakes-that-send-this-claim-back\" class=\"wp-block-heading\">Mistakes that send this claim back<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Four errors account for most rework on healed fracture claims.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Coding P from the radiology report.<\/strong> Imaging describes the bone, not the diagnosis. The finding has to come from the treating provider.<\/li>\n\n\n\n<li><strong>Using P during active treatment.<\/strong> While definitive care is still under way, the encounter is initial, so A or B applies.<\/li>\n\n\n\n<li><strong>Swapping P and K.<\/strong> The clinical difference is real and payers track it, since nonunion often triggers surgery.<\/li>\n\n\n\n<li><strong>Billing a late effect as malunion.<\/strong> Once treatment is finished and you are coding a residual problem, the sequela character applies, as in <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s82036s\/\">S82.036S<\/a>.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-what-the-official-guidelines-actually-require\" class=\"wp-block-heading\">What the official guidelines actually require<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Fracture coding rules live in Section I.C.19 of the <a href=\"https:\/\/www.cms.gov\/files\/document\/fy-2026-icd-10-cm-coding-guidelines.pdf\" target=\"_blank\" rel=\"nofollow noopener\">FY2026 ICD-10-CM Official Guidelines<\/a>. Four of them shape how you use S42.012P.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Active treatment sets the character.<\/strong> Assignment turns on whether the patient is still receiving active treatment, not on whether the provider has seen them before.<\/li>\n\n\n\n<li><strong>Healing complications have their own characters.<\/strong> For malunion the guidelines allow P, Q, or R characters, while nonunion uses K, M, or N characters. Clavicle codes only need K and P.<\/li>\n\n\n\n<li><strong>Delayed care still counts as initial.<\/strong> A patient who put off treatment for the fracture takes the initial encounter character.<\/li>\n\n\n\n<li><strong>Surgical complications are coded separately.<\/strong> Problems caused by fracture repair surgery during healing get the appropriate complication code.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">One more rule sits outside Section I.C.19 and matters just as much. Code assignment follows the provider&#8217;s documentation, so malunion is never something a coder infers.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Rehab teams feel this constantly. A therapist, or a clinician in a <a href=\"https:\/\/pabau.com\/industry\/chiropractic-software\/\">chiropractic practice<\/a>, can document lost range of motion in a healed shoulder. That note supports the therapy claim, but it cannot establish the malunion behind it.<\/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>Build one query template for fracture healing status and reuse it. Fill in the site, the side, and the phrase the radiologist used. Then ask the provider to confirm routine healing, delayed healing, nonunion, or malunion. Sending it the same day you code cuts the turnaround to hours.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-how-pabau-keeps-orthopedic-follow-up-claims-clean\" class=\"wp-block-heading\">How Pabau keeps orthopedic follow-up claims clean<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Most of the rework on a code like this is admin, not clinical. The follow-up note lives in one system, the coder works in another, and the claim leaves through a third. Every handoff is a chance for the malunion wording to go missing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau closes that distance. Patient records, treatment notes, and billing sit in the same platform. The coder reads the signed follow-up note without exporting anything, and nobody rekeys data between the chart and the charge.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">From there, our <a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">claims management software<\/a> submits the claim and tracks its progress. It also validates the insurer details before the claim leaves your practice. When something does bounce, the reason code and the note sit side by side. Your biller can correct and resubmit the same day.<\/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-s42012p\/fully-integrated-with-pabau-billing.webp\" alt=\"Billing fully integrated with Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s billing links each invoice to the client record holding the follow-up note. A returned clavicle claim is then quick to trace.<\/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 follow-up claims moving                <\/h3>\n\n                <p class=\"description\">\n                    Pabau brings patient records, treatment notes, and billing into one platform. Claims management then submits each claim, tracks its progress, and validates the insurer details before it leaves your practice.                <\/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 claims management dashboard\"\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\">S42.012P asks for three anatomical facts and one clinical judgment. Those facts are almost always in the chart already. The judgment, malunion, is the single thing a coder can never supply.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So the fix sits upstream of billing. Agree with your surgeons on the word they will use when a fracture heals crooked. Query the ones who reach for something vaguer. Do that once and this code becomes data entry.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau keeps notes, coding, and claims for follow-up visits in one system.<\/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 a clavicle procedure at the same visit?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-23146\/\">CPT code 23146<\/a> covers excision of a bone cyst from the clavicle or scapula with an allograft.<\/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>Billing surgery after a shoulder injury?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-23670\/\">CPT code 23670<\/a> covers open treatment of a shoulder dislocation with a greater tuberosity 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>Need the nonunion code near the elbow?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42442k\/\">S42.442K<\/a> covers a displaced medial epicondyle fracture that failed to join.<\/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>Working with open fracture healing characters?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s72334n\/\">S72.334N<\/a> shows how the nonunion characters work once Gustilo typing applies.<\/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>Assessing shoulder pain at a follow-up visit?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/arm-squeeze-test\/\">Arm squeeze test<\/a> walks through performing and scoring a test that separates neck pain from shoulder pain.<\/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-1786620996853\"><h3 class=\"schema-faq-question\">Do you need a CPT code alongside S42.012P?<\/h3> <p class=\"schema-faq-answer\">Yes. S42.012P is a diagnosis code, so it does not create a charge on its own. Pair it with the evaluation and management code or procedure code for that visit. The diagnosis then supports medical necessity for the service you billed.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786620996854\"><h3 class=\"schema-faq-question\">Can S42.012P be the first-listed diagnosis?<\/h3> <p class=\"schema-faq-answer\">Yes, when the malunion is the reason for the visit. Outpatient rules put the condition chiefly responsible for the encounter first. If the patient came in for something else that day, that problem leads instead.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786620996855\"><h3 class=\"schema-faq-question\">Is there a time limit on subsequent encounter codes?<\/h3> <p class=\"schema-faq-answer\">No. The 7th character follows the treatment phase rather than the calendar. A patient seen two years after the injury is still a subsequent encounter, provided active treatment has finished.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786620996856\"><h3 class=\"schema-faq-question\">What if the note does not say which clavicle?<\/h3> <p class=\"schema-faq-answer\">S42.013P covers an unspecified clavicle with malunion, but it is a last resort. Payers question unspecified laterality when imaging clearly shows a side. Query the provider first and use the specific code.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786620996857\"><h3 class=\"schema-faq-question\">Do you still report an external cause code at a malunion visit?<\/h3> <p class=\"schema-faq-answer\">You can, while the injury is still being treated, using the subsequent encounter 7th character on the external cause code. It never leads the claim, so S42.012P stays ahead of it.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>S42.012P covers a left clavicle fracture that healed out of position at a follow-up visit. Read more on the 7th character, documentation, and denials.<\/p>\n","protected":false},"author":85,"featured_media":178545,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"81","_yoast_wpseo_content_score":"90","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1433,1549,1550],"tags":[],"class_list":["post-178550","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-diagnostic-codes","category-icd-10-cm"],"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 S42.012P: Left clavicle fracture with malunion<\/title>\n<meta name=\"description\" content=\"ICD-10 code S42.012P covers a left clavicle fracture that healed out of position, follow-up visit. See 7th character rules 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\/nl\/diagnostic-codes\/icd-10-code-s42012p\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"ICD-10 code S42.012P: Left clavicle fracture with malunion\" \/>\n<meta property=\"og:description\" content=\"ICD-10 code S42.012P covers a left clavicle fracture that healed out of position, follow-up visit. See 7th character rules and denials.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/nl\/diagnostic-codes\/icd-10-code-s42012p\/\" \/>\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=\"2026-08-14T09:13:15+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-14T09:54:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/icd-10-code-s42012p.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=\"Geschreven door\" \/>\n\t<meta name=\"twitter:data1\" content=\"Monika Lazarevska\" \/>\n\t<meta name=\"twitter:label2\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/\"},\"author\":{\"name\":\"Monika Lazarevska\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/#\\\/schema\\\/person\\\/5763062f66fccbf75a390f99ee0b985a\"},\"headline\":\"ICD-10 code S42.012P: Anterior displaced left clavicle fracture with malunion\",\"datePublished\":\"2026-08-14T09:13:15+00:00\",\"dateModified\":\"2026-08-14T09:54:17+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/\"},\"wordCount\":2289,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s42012p.webp\",\"articleSection\":[\"Billing Codes\",\"Diagnostic Codes\",\"ICD-10-CM\"],\"inLanguage\":\"nl-NL\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/\",\"name\":\"ICD-10 code S42.012P: Left clavicle fracture with malunion\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/icd-10-code-s42012p.webp\",\"datePublished\":\"2026-08-14T09:13:15+00:00\",\"dateModified\":\"2026-08-14T09:54:17+00:00\",\"description\":\"ICD-10 code S42.012P covers a left clavicle fracture that healed out of position, follow-up visit. 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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\\\/nl\\\/#\\\/schema\\\/person\\\/5763062f66fccbf75a390f99ee0b985a\",\"name\":\"Monika Lazarevska\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@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\\\/nl\\\/blog\\\/author\\\/monika-lazarevska\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#faq-question-1786620996853\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#faq-question-1786620996853\",\"name\":\"Do you need a CPT code alongside S42.012P?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. S42.012P is a diagnosis code, so it does not create a charge on its own. Pair it with the evaluation and management code or procedure code for that visit. 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If the patient came in for something else that day, that problem leads instead.\",\"inLanguage\":\"nl-NL\"},\"inLanguage\":\"nl-NL\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#faq-question-1786620996855\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/nl\\\/diagnostic-codes\\\/icd-10-code-s42012p\\\/#faq-question-1786620996855\",\"name\":\"Is there a time limit on subsequent encounter codes?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The 7th character follows the treatment phase rather than the calendar. 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The diagnosis then supports medical necessity for the service you billed.","inLanguage":"nl-NL"},"inLanguage":"nl-NL"},{"@type":"Question","@id":"https:\/\/pabau.com\/nl\/diagnostic-codes\/icd-10-code-s42012p\/#faq-question-1786620996854","position":2,"url":"https:\/\/pabau.com\/nl\/diagnostic-codes\/icd-10-code-s42012p\/#faq-question-1786620996854","name":"Can S42.012P be the first-listed diagnosis?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes, when the malunion is the reason for the visit. Outpatient rules put the condition chiefly responsible for the encounter first. 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