{"id":182999,"date":"2026-08-17T13:13:53","date_gmt":"2026-08-17T13:13:53","guid":{"rendered":"https:\/\/pabau.com\/?p=182999"},"modified":"2026-08-17T13:13:55","modified_gmt":"2026-08-17T13:13:55","slug":"cpt-code-21485","status":"publish","type":"post","link":"https:\/\/pabau.com\/fr\/procedure-codes\/cpt-code-21485\/","title":{"rendered":"CPT code 21485: Closed treatment of complicated TMJ dislocation"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"CPT code 21485: Closed treatment of complicated TMJ dislocation\",\"description\":\"Complete reference for CPT code 21485 (closed treatment of temporomandibular dislocation, complicated), covering code description, ICD-10 crosswalk, modifiers, Medicare reimbursement, and documentation requirements.\",\"url\":\"https:\/\/pabau.com\/procedure-codes\/cpt-code-21485\/\",\"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\":\"2026-08-01\",\"dateModified\":\"2026-08-17\"}<\/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>CPT code 21485 covers closed treatment of a complicated temporomandibular dislocation that needs intermaxillary fixation or splinting.<\/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>Use 21485 instead of 21480 only when the dislocation is complicated and fixation or splinting is clinically necessary.<\/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>Pair the code with a laterality-specific jaw dislocation code such as S03.01XA, because the parent code S03.0 is not billable.<\/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>Most denials trace back to upcoding out of 21480, a missing -LT or -RT modifier, or thin complexity documentation.<\/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 ties the encounter note to the claim, so the evidence for complexity travels with the code.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\"><strong>CPT code 21485<\/strong> covers the closed treatment of a temporomandibular dislocation that is complicated, for example recurrent, and that requires intermaxillary fixation (IMF) or splinting. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">It applies to the initial encounter and to subsequent encounters in the same episode. The code sits in the fracture and dislocation procedures on the head section of the AMA&rsquo;s CPT code set.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The word that decides the claim is \u00ab\u00a0complicated.\u00a0\u00bb Without documented complexity, the encounter belongs under CPT 21480, the simple dislocation code. Payers look hard at that difference, so the note has to carry it.<\/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\">CPT code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">21485<\/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 descriptor<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Closed treatment of temporomandibular dislocation, complicated (e.g., recurrent), requiring intermaxillary fixation or splinting, initial or subsequent<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">CPT section<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Fracture and\/or dislocation procedures on the head (21480-21490)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Treatment type<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Closed (non-surgical reduction)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Encounter coverage<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Initial or subsequent<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Primary ICD-10<\/td>\n<td style=\"padding:12px 16px;color:#374151\">S03.00XA to S03.03XA, chosen by laterality. Swap the 7th character to D for a subsequent encounter or S for a sequela.<\/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=\"CPT Coding Pitfalls Every Medical Practice Faces\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/vbvV5okdXKg?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-cpt-21485-vs-21480-vs-21490-choosing-the-right-code\" class=\"wp-block-heading\">CPT 21485 vs 21480 vs 21490: Choosing the right code<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Picking between these three codes causes most claim errors for oral and maxillofacial surgery teams. Complexity decides between 21480 and 21485. Whether the joint is reduced surgically or by closed means decides between 21485 and 21490.<\/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\">Descriptor summary<\/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\">Key differentiator<\/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\">Fixation required?<\/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\">21480<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Closed treatment, simple (uncomplicated)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">First-time or straightforward dislocation; manual reduction only<\/td>\n<td style=\"padding:12px 16px;color:#374151\">No<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">21485<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Closed treatment, complicated (e.g., recurrent), requiring IMF or splinting<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Recurrent dislocation, or complexity that calls for stabilization<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes (IMF or splinting)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">21490<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Open treatment of temporomandibular dislocation<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical exposure required; not reducible by closed means<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes (surgical)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/aaoms.org\/wp-content\/uploads\/2024\/04\/TMJ_CodingPaper.pdf\" target=\"_blank\" rel=\"nofollow noopener\">AAOMS<\/a> guidance is clear that intermaxillary fixation or splinting is the procedural trigger for 21485 over 21480. Simple manual reduction without those measures stays under 21480, whatever the patient&rsquo;s history.<\/p>\n\n\n\n<h2 id=\"h-when-the-dislocation-counts-as-complicated\" class=\"wp-block-heading\">When the dislocation counts as complicated<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A dislocation counts as complicated when the joint will not hold its own reduction. Recurrence is the most common trigger, but it isn&rsquo;t the only one. These are the scenarios that most often call for 21485:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Recurrent TMJ dislocation.<\/strong> The chart documents prior dislocations, and conservative management has not held them.<\/li>\n\n\n\n<li><strong>Habitual or chronic dislocation.<\/strong> The condyle dislocates repeatedly without significant trauma, so reduction alone will not keep the joint stable.<\/li>\n\n\n\n<li><strong>Post-reduction instability.<\/strong> The joint reduces and then slips out again, which is why IMF or splinting goes on to hold it.<\/li>\n\n\n\n<li><strong>Bilateral dislocation requiring splinting.<\/strong> Both joints are involved at once, which raises complexity and usually calls for stabilization.<\/li>\n\n\n\n<li><strong>Prolonged dislocation.<\/strong> The joint has been out for an extended period, so muscle spasm keeps it from self-stabilizing after reduction.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Each scenario needs explicit documentation in the encounter note. Writing \u00ab\u00a0recurrent dislocation\u00a0\u00bb is not enough on its own. The note has to describe the findings that made IMF or splinting necessary.<\/p>\n\n\n\n<h2 id=\"h-icd-10-codes-to-pair-on-the-claim\" class=\"wp-block-heading\">ICD-10 codes to pair on the claim<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pairing the right ICD-10-CM diagnosis code with 21485 is a <a href=\"https:\/\/pabau.com\/blog\/clean-claim\/\">clean claim<\/a> requirement. Jaw dislocations sit in the S03.0 category, but S03.0 on its own is not billable. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The code needs a laterality character and a 7th character for the encounter. Confirm each one against the current year&rsquo;s <a href=\"https:\/\/icd10cmtool.cdc.gov\/\" target=\"_blank\" rel=\"nofollow noopener\">ICD-10-CM web tool<\/a> before you submit.<\/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\">ICD-10-CM 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\">Use when<\/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\">S03.01XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of jaw, right side, initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right TMJ dislocation at the first visit for this episode<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S03.02XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of jaw, left side, initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left TMJ dislocation at the first visit for this episode<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S03.03XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of jaw, bilateral, initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Both joints are out at once. This is the pairing that supports modifier -50.<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S03.00XA<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified dislocation of jaw, initial encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Laterality genuinely isn&rsquo;t documented. Expect more payer questions.<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S03.00XD, S03.01XD, S03.02XD, S03.03XD<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of jaw, subsequent encounter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Follow-up visits during active treatment or splinting management<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">S03.00XS, S03.01XS, S03.02XS, S03.03XS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dislocation of jaw, sequela<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Late effects of a prior jaw dislocation drive the current encounter<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M26.611, M26.612, M26.613, M26.619<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Adhesions and ankylosis of the temporomandibular joint, by side<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary diagnosis when joint adhesion contributes to recurrence<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M26.69<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other specified disorders of temporomandibular joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Secondary diagnosis for underlying TMJ pathology driving recurrence<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Two habits send these claims back. The first is submitting a category header instead of a code. Neither S03.0 nor M26.61 can be billed, so pick the side-specific member of the family. The second is a 7th character that contradicts the visit, such as S03.01XA on a follow-up or S03.01XD on the first reduction.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The same discipline runs through the rest of the Chapter 19 injury codes. Mandible fracture codes like <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s02651k\/\">S02.651K<\/a> and <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s02600d\/\">S02.600D<\/a> use the 7th character for healing status as well as encounter type.<\/p>\n\n\n\n<h2 id=\"h-modifiers-and-when-to-append-them\" class=\"wp-block-heading\">Modifiers and when to append them<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The modifier you need depends on the side treated and on the payer&rsquo;s policy. Verify requirements with each payer before submitting, because the rules vary. These are the modifiers that come up most often on 21485 claims.<\/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\">Modifier<\/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\">When to append<\/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\">-LT<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left side<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral left TMJ treatment<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-RT<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right side<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral right TMJ treatment<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-50<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral procedure<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Both joints treated in the same session. Payers typically reimburse 150% of the unilateral rate.<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-76<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Repeat procedure by same physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The same provider repeats 21485 on the same joint after the global period<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-77<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Repeat procedure by different physician<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A different provider repeats the same procedure within the global period<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-78<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unplanned return to operating room<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A complication during the global period requires a return to the OR<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">-79<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unrelated procedure during global period<\/td>\n<td style=\"padding:12px 16px;color:#374151\">A different, unrelated procedure is performed while the 21485 global period is open<\/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>Check whether the payer wants -LT or -RT on a bilateral TMJ claim that already carries -50. Some commercial payers reject -50 on its own for jaw procedures. They want -LT on the primary line and -RT on a second line instead. Read the payer&rsquo;s own modifier stacking rules before you submit.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-reimbursement-and-the-medicare-fee-schedule\" class=\"wp-block-heading\">Reimbursement and the Medicare fee schedule<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Medicare pays 21485 through the Resource-Based Relative Value Scale (RBRVS). Rates vary by locality and update every year. Pull the current figure for your region from the <a href=\"https:\/\/www.cms.gov\/medicare\/physician-fee-schedule\/search\/overview\" target=\"_blank\" rel=\"nofollow noopener\">CMS Physician Fee Schedule<\/a> lookup tool rather than quoting a national average.<\/p>\n\n\n\n<h3 id=\"h-rvu-components-that-drive-payment\" class=\"wp-block-heading\">RVU components that drive payment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Relative Value Units (RVUs) are the building blocks of Medicare payment. Total RVU multiplied by the annual conversion factor gives you the payment amount. The work, practice expense and malpractice values for 21485 move with each fee schedule, so read them from the current file.<\/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\">RVU component<\/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\">Notes<\/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\">Work RVU (wRVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Physician time, skill, and intensity<\/td>\n<td style=\"padding:12px 16px;color:#374151\">The largest component for surgical codes. Verify the current value in the CMS fee schedule.<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Practice expense RVU (PE RVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Overhead costs (staff, equipment, supplies)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Facility and non-facility rates differ, and non-facility is higher<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Malpractice RVU (MP RVU)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Professional liability insurance cost allocation<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical procedures carry a higher MP RVU than evaluation and management codes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Geographic adjustment factor (GAF)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Locality multiplier applied to each RVU component<\/td>\n<td style=\"padding:12px 16px;color:#374151\">High-cost metro areas receive a higher GAF, and rural areas a lower one<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Conversion factor (CF)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Dollar amount applied per RVU, updated annually by CMS<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Payment = total RVU x GAF x CF. Confirm the current CF before billing.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Commercial rates for 21485 are negotiated separately from Medicare and generally sit above it. Compare your contracted rate against adjacent trauma codes such as <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-20102\/\">CPT code 20102<\/a> to see where this one sits in your fee schedule.<\/p>\n\n\n\n<h2 id=\"h-documentation-requirements-for-a-clean-claim\" class=\"wp-block-heading\">Documentation requirements for a clean claim<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Recurrent TMJ claims draw more payer scrutiny than most head and neck procedure codes. The note has to do more than state a diagnosis. It has to show why 21485 applies rather than 21480. These are the elements that support <a href=\"https:\/\/pabau.com\/blog\/medical-forms-at-your-healthcare-practice\/\">medical necessity documentation<\/a> on a complicated dislocation claim.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>History of prior dislocations.<\/strong> Record how many episodes came before, their dates where known, and what was tried. Payers read this to confirm that \u00ab\u00a0complicated\u00a0\u00bb is justified rather than upcoded.<\/li>\n\n\n\n<li><strong>Clinical findings at this encounter.<\/strong> Describe joint mobility, range of motion, muscle spasm and pain level. Objective findings outweigh subjective complaints on audit.<\/li>\n\n\n\n<li><strong>Complexity justification.<\/strong> State plainly why IMF or splinting is required. \u00ab\u00a0Habitual bilateral dislocation with post-reduction instability requiring splinting\u00a0\u00bb is the kind of language that holds.<\/li>\n\n\n\n<li><strong>Procedure description.<\/strong> Document the reduction method, the type of fixation or splint, how it was applied, and how long it stays on.<\/li>\n\n\n\n<li><strong>Follow-up plan.<\/strong> Note the expected duration of stabilization and the date set for splint or IMF removal. This is what supports the subsequent encounter claims in the same episode.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practices using <a href=\"https:\/\/pabau.com\/features\/patient-intake-software\/\">digital documentation forms<\/a> can build these elements into a structured template, so nothing is missing from a note a payer may later read. A group that bills facial surgery as well as oral surgery can hold one template set in a <a href=\"https:\/\/pabau.com\/industry\/plastic-surgery-emr\/\">plastic surgery EMR<\/a>. Complexity language then doesn&rsquo;t vary by surgeon.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The episode doesn&rsquo;t end when the splint comes off, either. Jaw movement is usually monitored for weeks afterwards. A practice that runs that rehabilitation in-house can keep those notes on the same record in a <a href=\"https:\/\/pabau.com\/industry\/physical-therapy-emr\/\">physical therapy EMR<\/a>.<\/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\/billing_codes\/cpt-code-21485\/digital-forms.webp\" alt=\"Pabau medical form builder showing a template library and a mobile form preview\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&rsquo;s form builder turns the 21485 documentation checklist into a template your surgeons complete at the chair, so complexity findings reach the claim.<\/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<h2 id=\"h-common-billing-errors-and-denial-reasons\" class=\"wp-block-heading\">Common billing errors and denial reasons<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Denials on 21485 cluster around a short list of causes. These are the ones oral surgery billing teams report most often on complicated TMJ dislocation claims.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Upcoding from 21480.<\/strong> The claim says 21485 but the note supports a simple closed reduction. Either add the complexity elements above, or bill 21480.<\/li>\n\n\n\n<li><strong>Missing laterality modifier.<\/strong> Many payers reject a unilateral 21485 that arrives without -LT or -RT, even when bilateral treatment was never involved.<\/li>\n\n\n\n<li><strong>A non-billable or mismatched diagnosis.<\/strong> S03.0 on its own will not pay, and S03.01XA on a follow-up visit contradicts the encounter type.<\/li>\n\n\n\n<li><strong>Evaluation and management billed without modifier -25.<\/strong> A significant, separately identifiable E\/M service on the same day needs -25, or the payer bundles it into the procedure.<\/li>\n\n\n\n<li><strong>Global period violations.<\/strong> A second 21485 inside the global period needs -76 or -79. Without one, the payer treats the visit as already paid for.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practices that treat <a href=\"https:\/\/pabau.com\/blog\/denial-management-in-healthcare\/\">denial management<\/a> as a monthly habit catch these before they compound. Code-level reporting shows you when 21485 denies more often than 21480, which points straight at documentation or modifiers.<\/p>\n\n\n\n<h2 id=\"h-how-payers-cover-complicated-tmj-dislocation\" class=\"wp-block-heading\">How payers cover complicated TMJ dislocation<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Coverage for 21485 varies by payer, so verify it before submitting. Local Coverage Determinations (LCDs) and commercial policies both change. The general landscape looks like this.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Medicare.<\/strong> Coverage generally follows once documentation establishes a complicated or recurrent dislocation. There is no National Coverage Determination for TMJ dislocation treatment, so general surgical coverage policy applies. Some Medicare Administrative Contractors (MACs) publish their own LCDs for TMJ procedures, so check yours directly.<\/li>\n\n\n\n<li><strong>Medicaid.<\/strong> Coverage varies widely by state, and many programs require prior authorization for TMJ procedures. Confirm your state&rsquo;s policy before you schedule.<\/li>\n\n\n\n<li><strong>Commercial payers.<\/strong> Most cover medically necessary treatment of recurrent TMJ dislocation. Some ask for prior authorization on 21485 specifically, because it pays more than 21480.<\/li>\n\n\n\n<li><strong>Dental plans.<\/strong> TMJ care can straddle medical and dental benefits. Some patients hold TMJ coverage on a dental plan that exhausts before the medical benefit starts, so clarify the carve-out first.<\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-how-billing-software-keeps-21485-claims-clean\" class=\"wp-block-heading\">How billing software keeps 21485 claims clean<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Manual lookup adds transcription risk at every step. You choose one code from a three-code family, attach the modifier, pair the encounter-specific diagnosis, and check the global period. Any one of those steps can break the claim.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Practice management software like Pabau connects those steps to the patient record instead. Our <a href=\"https:\/\/pabau.com\/features\/claims-management-software\/\">claims management software<\/a> keeps code selection, documentation and submission in one platform, so coders aren&rsquo;t copying figures out of a separate reference database.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">That matters most on a code that needs modifier stacking and an exact diagnosis pairing. The note that justifies \u00ab\u00a0complicated\u00a0\u00bb sits with the claim that bills it. Anyone who picks up the denial has the supporting evidence already in front of them.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Reporting closes the loop. A single <a href=\"https:\/\/pabau.com\/blog\/practice-management-software\/\">practice management workflow<\/a> shows denials by code. When 21485 rejects more often than 21480, you know to go back to the note template.<\/p>\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                    Streamline your oral surgery billing workflows                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&rsquo;s claims management tools help oral surgery and maxillofacial practices validate CPT codes, attach modifiers, and submit cleaner claims. See how it fits your billing workflow.                <\/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 practice management platform\"\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\">The line between 21480 and 21485 is a documentation line, not a clinical opinion. If the note shows why the joint needed fixation, the higher code holds up. If it doesn&rsquo;t, no modifier or appeal letter will rescue the claim later.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">So capture the complexity language while the patient is still in the chair, and pair it with the laterality-specific diagnosis code. The trade-off is a few extra fields at the point of care against an audit you never have to defend.<\/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 oral surgery documentation and claim data on one 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>Billing another surgical code this week?<\/strong> <a href=\"https:\/\/pabau.com\/procedure-codes\/cpt-code-19316\/\">CPT code 19316<\/a> shows how modifiers and current-year rates come together on a surgical claim.<\/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>Still fixing rejections after the fact?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/medical-claims-clearinghouse\/\">Medical claims clearinghouse<\/a> explains how claims are scrubbed and routed before they ever reach the payer.<\/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>Got patients who keep redislocating?<\/strong> <a href=\"https:\/\/pabau.com\/blog\/patient-education\/\">Patient education<\/a> covers the materials and workflows that help patients stick to post-procedure instructions.<\/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 laterality worked example?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s42302k\/\">S42.302K<\/a> walks through billing a nonunion with the right side and 7th character.<\/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>Coding a late effect instead?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-s66399s\/\">S66.399S<\/a> shows how a sequela code is sequenced and documented.<\/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-1786969145913\"><h3 class=\"schema-faq-question\">What is CPT code 21485 used for?<\/h3> <p class=\"schema-faq-answer\">CPT code 21485 is used to report closed, non-surgical treatment of a complicated temporomandibular joint dislocation. It applies when the dislocation is recurrent or otherwise unstable and needs intermaxillary fixation or splinting. It covers both initial and subsequent treatment encounters in the same episode.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786969145914\"><h3 class=\"schema-faq-question\">What is the difference between CPT 21480 and 21485?<\/h3> <p class=\"schema-faq-answer\">CPT 21480 covers simple, uncomplicated closed TMJ dislocation treatment by manual reduction only, with no fixation required. CPT 21485 applies when the dislocation is complicated and requires intermaxillary fixation or splinting. The clinical need for IMF or splinting is the key differentiator.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786969145915\"><h3 class=\"schema-faq-question\">Which modifiers apply to CPT 21485?<\/h3> <p class=\"schema-faq-answer\">Common modifiers are -LT for the left side, -RT for the right side, and -50 for a bilateral procedure. Repeat procedures take -76 for the same physician and -77 for a different physician. Modifiers -78 and -79 cover an unplanned return to the OR and an unrelated procedure in the global period. Applicability depends on payer policy, so verify before submitting.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786969145916\"><h3 class=\"schema-faq-question\">What does Medicare pay for CPT 21485?<\/h3> <p class=\"schema-faq-answer\">Medicare payment for 21485 varies by geographic locality and updates annually. Retrieve current rates from the CMS Physician Fee Schedule lookup tool at cms.gov, using this year&rsquo;s conversion factor and the code&rsquo;s RVU values. National averages are not published here, because they change every year and vary by location.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786969145917\"><h3 class=\"schema-faq-question\">Which ICD-10 codes pair with 21485?<\/h3> <p class=\"schema-faq-answer\">Pair 21485 with a laterality-specific jaw dislocation code. Use S03.01XA for the right side, S03.02XA for the left, S03.03XA for bilateral, or S03.00XA when the side isn&rsquo;t documented. Swap the 7th character to D for a subsequent encounter or S for a sequela. The parent code S03.0 is not billable on its own.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1786969145918\"><h3 class=\"schema-faq-question\">What documentation is required to bill 21485?<\/h3> <p class=\"schema-faq-answer\">The note must document prior dislocation history, which establishes recurrence, plus the objective clinical findings at this encounter. It must also state why IMF or splinting is clinically necessary. Record the procedure performed, including fixation type and technique, and the follow-up plan. Generic language such as \u00ab\u00a0recurrent dislocation\u00a0\u00bb without clinical detail commonly triggers denials on audit.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>CPT code 21485 covers the closed treatment of a temporomandibular dislocation that is complicated, for example recurrent, and that requires intermaxillary fixation (IMF) or splinting. It applies to the initial encounter and to subsequent encounters in the same episode. The code sits in the fracture and dislocation procedures on the head section of the AMA&rsquo;s [&hellip;]<\/p>\n","protected":false},"author":83,"featured_media":182995,"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":[1433,1546],"tags":[2387,2405,1602,3367,3368],"class_list":["post-182999","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-billing-codes","category-cpt-codes","tag-claim-denials","tag-cpt-code-documentation","tag-cpt-modifiers","tag-oral-surgery","tag-oral-surgery-billing"],"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>CPT code 21485: Billing complicated TMJ dislocation (2026)<\/title>\n<meta name=\"description\" content=\"CPT 21485 covers complicated TMJ dislocation needing fixation. Pair it with laterality-specific S03.0 codes, not the parent code.\" \/>\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\/procedure-codes\/cpt-code-21485\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CPT code 21485: Billing complicated TMJ dislocation (2026)\" \/>\n<meta property=\"og:description\" content=\"CPT 21485 covers complicated TMJ dislocation needing fixation. Pair it with laterality-specific S03.0 codes, not the parent code.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/pabau.com\/fr\/procedure-codes\/cpt-code-21485\/\" \/>\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=\"2026-08-17T13:13:53+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-08-17T13:13:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/pabau.com\/wp-content\/uploads\/2026\/08\/cpt-code-21485.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=\"Anja Dodevska\" \/>\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=\"Anja Dodevska\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"11 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/\"},\"author\":{\"name\":\"Anja Dodevska\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#\\\/schema\\\/person\\\/f2e43b25ed02313e8781f0f4507398b9\"},\"headline\":\"CPT code 21485: Closed treatment of complicated TMJ dislocation\",\"datePublished\":\"2026-08-17T13:13:53+00:00\",\"dateModified\":\"2026-08-17T13:13:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/\"},\"wordCount\":2382,\"publisher\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/cpt-code-21485.webp\",\"keywords\":[\"Claim denials\",\"Cpt code documentation\",\"Cpt Modifiers\",\"Oral surgery\",\"Oral Surgery Billing\"],\"articleSection\":[\"Billing Codes\",\"CPT Codes\"],\"inLanguage\":\"fr-FR\"},{\"@type\":[\"WebPage\",\"FAQPage\"],\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/\",\"name\":\"CPT code 21485: Billing complicated TMJ dislocation (2026)\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/cpt-code-21485.webp\",\"datePublished\":\"2026-08-17T13:13:53+00:00\",\"dateModified\":\"2026-08-17T13:13:55+00:00\",\"description\":\"CPT 21485 covers complicated TMJ dislocation needing fixation. 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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\\\/fr\\\/#\\\/schema\\\/person\\\/f2e43b25ed02313e8781f0f4507398b9\",\"name\":\"Anja Dodevska\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"fr-FR\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-CE0C072E-91B7-4BB7-BD27-D1E3B38ED0CA-scaled-1-96x96.jpg\",\"caption\":\"Anja Dodevska\"},\"description\":\"Anja Dodevska writes about healthcare, dermatology, and the day-to-day realities of running a medical practice for Pabau. She enjoys breaking down complex topics into clear, accessible content and has a soft spot for the often-overlooked aspects of clinic life. When she's not writing, she's exploring cafes, walking her dog, or spending time with friends and family.\",\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/blog\\\/author\\\/anja-dodevska\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145913\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145913\",\"name\":\"What is CPT code 21485 used for?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CPT code 21485 is used to report closed, non-surgical treatment of a complicated temporomandibular joint dislocation. It applies when the dislocation is recurrent or otherwise unstable and needs intermaxillary fixation or splinting. It covers both initial and subsequent treatment encounters in the same episode.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145914\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145914\",\"name\":\"What is the difference between CPT 21480 and 21485?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"CPT 21480 covers simple, uncomplicated closed TMJ dislocation treatment by manual reduction only, with no fixation required. CPT 21485 applies when the dislocation is complicated and requires intermaxillary fixation or splinting. The clinical need for IMF or splinting is the key differentiator.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145915\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145915\",\"name\":\"Which modifiers apply to CPT 21485?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Common modifiers are -LT for the left side, -RT for the right side, and -50 for a bilateral procedure. Repeat procedures take -76 for the same physician and -77 for a different physician. Modifiers -78 and -79 cover an unplanned return to the OR and an unrelated procedure in the global period. Applicability depends on payer policy, so verify before submitting.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145916\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145916\",\"name\":\"What does Medicare pay for CPT 21485?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Medicare payment for 21485 varies by geographic locality and updates annually. Retrieve current rates from the CMS Physician Fee Schedule lookup tool at cms.gov, using this year's conversion factor and the code's RVU values. National averages are not published here, because they change every year and vary by location.\",\"inLanguage\":\"fr-FR\"},\"inLanguage\":\"fr-FR\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145917\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/fr\\\/procedure-codes\\\/cpt-code-21485\\\/#faq-question-1786969145917\",\"name\":\"Which ICD-10 codes pair with 21485?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Pair 21485 with a laterality-specific jaw dislocation code. Use S03.01XA for the right side, S03.02XA for the left, S03.03XA for bilateral, or S03.00XA when the side isn't documented. Swap the 7th character to D for a subsequent encounter or S for a sequela. 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