{"id":168403,"date":"2026-07-29T11:50:50","date_gmt":"2026-07-29T11:50:50","guid":{"rendered":"https:\/\/pabau.com\/?p=168403"},"modified":"2026-08-17T11:49:33","modified_gmt":"2026-08-17T11:49:33","slug":"icd-10-code-m172","status":"publish","type":"post","link":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/","title":{"rendered":"ICD-10 code M17.2: Bilateral post-traumatic osteoarthritis of knee"},"content":{"rendered":"\n<script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@type\":\"MedicalWebPage\",\"headline\":\"ICD-10 Code M17.2: Bilateral post-traumatic osteoarthritis of knee\",\"description\":\"ICD-10 Code M17.2 (Bilateral post-traumatic osteoarthritis of knee): billable status, documentation requirements, M17 subcodes, associated CPT codes, and coding tips.\",\"url\":\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m172\/\",\"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\":\"2026-07-25\",\"dateModified\":\"2026-07-25\"}<\/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>ICD-10 Code M17.2 describes bilateral post-traumatic osteoarthritis of the knee, a billable ICD-10-CM code valid for FY2026.<\/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>Using M17.2 requires documented evidence of prior trauma or injury as the causative factor for osteoarthritis in both knees.<\/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>M17.2 is distinct from M17.11\/M17.12 (unilateral primary OA) and M17.9 (unspecified OA). Choosing the wrong code risks claim denial.<\/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>Pabau&#8217;s claims management software and built-in clinical documentation tools help orthopedic and physical therapy practices apply the correct diagnosis code at the point of care.<\/p>\n                        <\/div>\n                                                <\/div>\n        <\/div>\n    \n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code M17.2 is a billable diagnosis code for bilateral post-traumatic osteoarthritis of the knee, caused by documented trauma affecting both joints. Coders often default to the unspecified M17.9 when the record clearly supports M17.2, which under-codes the diagnosis and raises audit risk. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This reference covers the code&#8217;s definition, billable status, documentation requirements, differential coding, and associated CPT codes.<\/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-icd-10-code-m17-2-definition-and-billable-status\" class=\"wp-block-heading\">ICD-10 Code M17.2: Definition and billable status<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code M17.2 is a billable, specific ICD-10-CM diagnosis code for <strong>bilateral post-traumatic osteoarthritis of the knee.<\/strong> It became effective on October 1, 2025 as part of the FY2026 ICD-10-CM edition and is valid for HIPAA-covered electronic transactions. The <a href=\"https:\/\/icd10cmtool.cdc.gov\/\" target=\"_blank\" rel=\"nofollow noopener\">CDC\/NCHS ICD-10-CM web tool<\/a> confirms its billable status and full code description.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M17.2 sits within the M17 category (Osteoarthritis of knee), which falls under the broader musculoskeletal chapter M00-M99. The key distinction from other M17 codes is two qualifying criteria: bilateral involvement (both knees) and post-traumatic etiology, meaning prior injury rather than idiopathic degeneration.<\/p>\n\n\n\n<h2 id=\"h-m17-2-code-details-at-a-glance\" class=\"wp-block-heading\">M17.2 code details at a glance<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The table below covers the core reference data coders and billing staff need for ICD-10 Code M17.2.<\/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\">Value<\/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\">ICD-10-CM Code<\/td>\n<td style=\"padding:12px 16px;color:#374151\">M17.2<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Full Description<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral post-traumatic osteoarthritis of knee<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Billable \/ Specific<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes, valid for reimbursement submission<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">ICD-10-CM Edition<\/td>\n<td style=\"padding:12px 16px;color:#374151\">FY2026 (effective October 1, 2025)<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">HIPAA Validity<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Valid for HIPAA-covered electronic transactions<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">POA Indicator<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Exempt from Present on Admission reporting<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Parent Category<\/td>\n<td style=\"padding:12px 16px;color:#374151\">M17 &#8211; Osteoarthritis of knee<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">Chapter<\/td>\n<td style=\"padding:12px 16px;color:#374151\">M00-M99 &#8211; Diseases of the musculoskeletal system and connective tissue<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h2 id=\"h-what-is-bilateral-post-traumatic-osteoarthritis-of-the-knee\" class=\"wp-block-heading\">What is bilateral post-traumatic osteoarthritis of the knee?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Bilateral post-traumatic osteoarthritis of the knee is cartilage degeneration affecting both knee joints. The primary cause is documented prior trauma rather than age-related wear, which is primary OA. That traumatic history sets it apart clinically and for coding purposes.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common triggering injuries include anterior cruciate ligament (ACL) tears, meniscal tears, intra-articular fractures, and tibial plateau fractures. These events initiate a cascade of inflammatory and mechanical changes that accelerate cartilage breakdown, sometimes appearing years or decades after the original injury.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Bilateral requirement:<\/strong> Both knees must show OA pathology. Single-knee post-traumatic OA maps to M17.31 (right) or M17.32 (left).<\/li>\n\n\n\n<li><strong>Post-traumatic etiology:<\/strong> The clinical record must connect the OA to a specific prior injury, not general aging.<\/li>\n\n\n\n<li><strong>Distinct from primary OA:<\/strong> Primary bilateral knee OA codes as M17.0, which involves no traumatic history.<\/li>\n\n\n\n<li><strong>Symptom overlap:<\/strong> Pain, stiffness, crepitus, and reduced range of motion are present in all knee OA subtypes. Etiology documentation is the critical differentiator for accurate coding.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Clinicians treating these patients in sports medicine or orthopedic settings should confirm bilateral involvement on examination and imaging before applying M17.2. A patient with a history of ACL injury to only one knee does not qualify.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Our roundup of <a href=\"https:\/\/pabau.com\/blog\/jane-app-alternatives\/\">alternatives to Jane App<\/a> covers platforms that pair M-code diagnoses with treatment plans and billing.<\/p>\n\n\n\n<h2 id=\"h-clinical-documentation-requirements-for-m17-2\" class=\"wp-block-heading\">Clinical documentation requirements for M17.2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Selecting ICD-10 Code M17.2 requires documentation that supports both qualifying criteria: post-traumatic etiology and bilateral presentation. Missing either element means the code is not defensible under audit. According to the <a href=\"https:\/\/www.cms.gov\/medicare\/coding-billing\/icd-10-codes\" target=\"_blank\" rel=\"nofollow noopener\">CMS ICD-10-CM coding guidelines<\/a>, codes should reflect the highest specificity supported by the clinical record.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Traumatic history:<\/strong> Document the specific injury or injuries (type, date, affected joint) that caused the OA. Reference prior operative reports, imaging findings, or specialist notes where available.<\/li>\n\n\n\n<li><strong>Bilateral involvement:<\/strong> State explicitly that osteoarthritis is present in both knees. Imaging reports (X-ray, MRI) showing bilateral joint space narrowing, osteophytes, or subchondral sclerosis provide objective support.<\/li>\n\n\n\n<li><strong>Causal link:<\/strong> The note should connect the documented prior trauma to the current OA diagnosis, not just list both separately. A phrase like &#8222;bilateral knee OA secondary to prior ACL tears bilaterally&#8220; is cleaner than listing each in isolation.<\/li>\n\n\n\n<li><strong>Laterality in physical exam:<\/strong> Record findings for each knee individually: range of motion, tenderness, crepitus, and stability for right and left.<\/li>\n<\/ul>\n\n\n\n<h3 id=\"h-common-documentation-errors-to-avoid\" class=\"wp-block-heading\">Common documentation errors to avoid<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Coders relying on incomplete notes run into predictable problems with ICD-10 Code M17.2. The most common errors are avoidable with structured documentation habits.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Using M17.9 by default:<\/strong> Unspecified OA of the knee is appropriate only when the type and laterality cannot be determined. When the record clearly shows bilateral post-traumatic OA, defaulting to M17.9 is under-coding and can trigger payer queries.<\/li>\n\n\n\n<li><strong>Omitting the traumatic history:<\/strong> If the note says &#8222;bilateral knee OA&#8220; without referencing the causative injury, the coder cannot select M17.2 without querying the provider. Build the prompt into templates.<\/li>\n\n\n\n<li><strong>Missing bilateral confirmation:<\/strong> Notes that document OA findings for only one knee leave the bilateral claim unsupported. Both knees need documented exam or imaging findings.<\/li>\n\n\n\n<li><strong>Conflating M17.2 with M17.0:<\/strong> M17.0 is bilateral primary OA, with no trauma history. The distinction matters for payers and for accurate representation of the patient&#8217;s condition.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Specificity in diagnosis coding protects practices during payer audits and retrospective reviews.<\/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 a bilateral OA documentation checklist into your SOAP note template: (1) named prior injury with date, (2) bilateral imaging findings, (3) explicit causal language connecting the injury to the OA. This three-point structure gives coders everything they need to select M17.2 without a provider query.<\/p>\n            <\/div>\n        <\/div>\n    \n\n\n<h2 id=\"h-m17-2-vs-related-knee-osteoarthritis-codes\" class=\"wp-block-heading\">M17.2 vs related knee osteoarthritis codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The M17 category contains codes for primary, post-traumatic, and other secondary OA of the knee, with laterality subcodes. Selecting the right code depends on etiology (primary vs post-traumatic vs other secondary) and which knees are involved. The <a href=\"https:\/\/www.aapc.com\/codes\/icd-10-codes-range\/\" target=\"_blank\" rel=\"nofollow noopener\">AAPC ICD-10-CM code lookup<\/a> and <a href=\"https:\/\/www.who.int\" target=\"_blank\" rel=\"nofollow noopener\">WHO<\/a> classification hierarchy both organize these by etiology first, then laterality.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Etiology<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Laterality<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral primary osteoarthritis of knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary (idiopathic)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.11<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary osteoarthritis, right knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary (idiopathic)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right only<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.12<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary osteoarthritis, left knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Primary (idiopathic)<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left only<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.2<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral post-traumatic osteoarthritis of knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Post-traumatic<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.31<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral post-traumatic osteoarthritis, right knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Post-traumatic<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Right only<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.32<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral post-traumatic osteoarthritis, left knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Post-traumatic<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Left only<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Osteoarthritis of knee, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unspecified<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<h3 id=\"h-when-to-use-m17-2-instead-of-m17-9-or-m17-11\" class=\"wp-block-heading\">When to use M17.2 instead of M17.9 or M17.11<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use ICD-10 Code M17.2 when the clinical record explicitly documents all three elements: osteoarthritis, both knees affected, and a causative prior injury. If any element is missing, the coding decision changes.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>M17.2 vs M17.9:<\/strong> M17.9 is for genuinely unspecified cases only. If the documentation supports bilateral post-traumatic OA, using M17.9 is under-coding. Query the provider if the note is ambiguous.<\/li>\n\n\n\n<li><strong>M17.2 vs M17.11\/M17.12:<\/strong> These codes are for primary (non-traumatic) unilateral OA. Use them when only one knee is involved and there is no traumatic cause documented.<\/li>\n\n\n\n<li><strong>M17.2 vs M17.31\/M17.32:<\/strong> Post-traumatic OA in only one knee maps to M17.31 (right) or M17.32 (left), not M17.2. Bilateral presentation is the deciding factor.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Practices with an integrated client record can structure notes to surface the laterality and etiology fields that coders need. This reduces the back-and-forth between clinical and billing teams.<\/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-m172\/detailed-client-records-in-pabau.webp\" alt=\"Detailed client records in Pabau\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s client record captures bilateral exam findings and injury history in structured fields, so coders can select M17.2 without chasing the provider for missing detail.<\/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-full-m17-category-osteoarthritis-of-knee-icd-10-codes\" class=\"wp-block-heading\">Full M17 category: Osteoarthritis of knee ICD-10 codes<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The complete M17 category covers primary, post-traumatic, and other secondary OA of the knee. Coders working in orthopedic, chiropractic, or sports medicine settings should be familiar with all subcodes. The <a href=\"https:\/\/icd.who.int\/browse10\/2019\/en\" target=\"_blank\" rel=\"nofollow noopener\">WHO ICD-10 browser<\/a> provides the hierarchical structure for the full M17 range.<\/p>\n\n\n\n<table style=\"width:100%;border-collapse:separate;border-spacing:0;border-radius:12px;overflow:hidden;font-size:15px;line-height:1.5;margin:1.5em 0 2em;box-shadow:0 2px 12px rgba(0,0,0,0.08)\">\n<thead>\n<tr>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Code<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Description<\/th>\n<th style=\"background:#121D36;color:#fff;padding:14px 16px;text-align:left;font-weight:600;font-size:14px;letter-spacing:0.3px;border-bottom:2px solid #2BADD4\">Billable<\/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\">M17<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Osteoarthritis of knee (category header &#8211; not billable)<\/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\">M17.0<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral primary osteoarthritis of knee<\/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\">M17.10<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral primary osteoarthritis, unspecified knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.11<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral primary osteoarthritis, right knee<\/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\">M17.12<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral primary osteoarthritis, left knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.2<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Bilateral post-traumatic osteoarthritis of knee<\/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\">M17.30<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral post-traumatic osteoarthritis, unspecified knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.31<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral post-traumatic osteoarthritis, right knee<\/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\">M17.32<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Unilateral post-traumatic osteoarthritis, left knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.4<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other bilateral secondary osteoarthritis of knee<\/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\">M17.5<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Other unilateral secondary osteoarthritis of knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">M17.9<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Osteoarthritis of knee, unspecified<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Practitioners in chiropractic practices managing knee OA patients should confirm etiology and laterality at each encounter. The documented clinical picture may evolve from unspecified to a more specific code as workup progresses.<\/p>\n\n\n\n<h2 id=\"h-associated-cpt-codes-and-billing-considerations-for-m17-2\" class=\"wp-block-heading\">Associated CPT codes and billing considerations for M17.2<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">ICD-10 Code M17.2 is commonly paired with several CPT procedure codes depending on the visit type and treatment. Payers require medical necessity documentation to support the specific code pairing. Always verify coverage and prior authorization requirements with the relevant payer before submitting.<\/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\">CPT 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\">Context<\/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\">99213 \/ 99214<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Office or outpatient visit, established patient<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Routine evaluation and management visits<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">73562 \/ 73564<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Radiological examination of knee<\/td>\n<td style=\"padding:12px 16px;color:#374151\">X-ray to confirm OA and document bilateral involvement<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">27447<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Total knee arthroplasty<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Surgical intervention for severe post-traumatic OA<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">20610<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Aspiration and\/or injection of major joint<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Corticosteroid or hyaluronic acid knee injections<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">97110<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Therapeutic exercises<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Physical therapy for strength and mobility rehabilitation<\/td>\n<\/tr>\n<tr style=\"border-bottom:1px solid #E8ECF0;background:#F9FAFB\">\n<td style=\"padding:12px 16px;font-weight:600;color:#121D36\">97530<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Therapeutic activities<\/td>\n<td style=\"padding:12px 16px;color:#374151\">Functional PT activities for bilateral knee OA management<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<p class=\"wp-block-paragraph\">Billing for bilateral knee procedures on the same date requires attention to modifier rules. For bilateral procedures (such as bilateral knee injections under CPT 20610), append modifier 50 and confirm payer-specific bilateral billing policies. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">CMS coding guidelines govern modifier usage for Medicare submissions. Pabau&#8217;s claims management software allows practices to attach and validate modifiers directly within the billing workflow, reducing the risk of submission errors on bilateral claims.<\/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-m172\/fully-integrated-with-pabau-billing.webp\" alt=\"Fully Integrated with Pabau Billing\"\/><figcaption class=\"wp-element-caption\"><em>Pabau&#8217;s claims management module lets coders attach modifier 50 directly to a claim, keeping bilateral procedure billing accurate without manual rework.<\/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 class=\"wp-block-heading\">Related ICD-10 codes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m1990\/\">ICD-10 code M19.90 \u2014 Degenerative Joint Disease Documentation<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m174\/\">ICD-10 M17.4 \u2014 Other bilateral secondary knee osteoarthritis<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m175\/\">ICD-10 Code M17.5 \u2014 Unilateral secondary osteoarthritis of knee<\/a><\/li>\n\n\n<li><a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m179\/\">ICD-10 Code M17.9 \u2014 Osteoarthritis of knee, unspecified<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"h-how-pabau-supports-accurate-icd-10-coding-for-knee-osteoarthritis\" class=\"wp-block-heading\">How Pabau supports accurate ICD-10 coding for knee osteoarthritis<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Reference sites give you the code. Workflow tools give you the code applied correctly, every time. Pabau addresses the gap between knowing a code exists and consistently documenting the clinical criteria that support it.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Built-in ICD-10 code search:<\/strong> Clinicians and coders can search and apply ICD-10 codes directly within the patient record without switching browser tabs or re-entering data.<\/li>\n\n\n\n<li><strong>Structured clinical note templates:<\/strong> Note templates for orthopedic and musculoskeletal presentations can be built with mandatory fields for injury history, laterality, and etiology. That structure prompts M17.2 documentation at the time of the visit, rather than reconstructing it afterward.<\/li>\n\n\n\n<li><strong>Code-to-claim workflow:<\/strong> Diagnosis codes applied in Pabau&#8217;s clinical record flow directly to the billing module. This eliminates the transcription step between clinical and billing teams and reduces the laterality errors that trigger claim denials.<\/li>\n\n\n\n<li><strong>AI-assisted documentation:<\/strong> Pabau&#8217;s AI documentation tools help structure clinical notes from consultations, capturing the bilateral and post-traumatic details that coders need for accurate M17.2 selection.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">For practices managing a high volume of orthopedic or post-traumatic OA patients, the ROI on accurate coding is direct. It means fewer claim denials, fewer provider queries, and a cleaner audit trail.<\/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                    Reduce claim denials with accurate ICD-10 coding                <\/h3>\n\n                <p class=\"description\">\n                    Pabau&#8217;s built-in ICD-10 search and structured documentation tools help orthopedic and physical therapy practices apply the right diagnosis code at every visit. See how the code-to-claim workflow works in 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 practice management platform for clinical documentation and billing\"\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\">Defaulting to M17.9 when the clinical record clearly supports ICD-10 Code M17.2 is one of the most common and avoidable musculoskeletal coding errors. The fix is straightforward: document the traumatic history, confirm bilateral involvement, and let the specificity of the record drive the code selection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Billing accuracy for these practices depends on clinical note quality. Pabau&#8217;s structured documentation and integrated claims management close the loop between exam room and billing submission. <a href=\"https:\/\/pabau.com\/book-demo\/\">Book a demo<\/a> to see how Pabau handles ICD-10 coding within the clinical workflow.<\/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 hip osteoarthritis in a bilateral presentation?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m162\/\">M16.2<\/a> covers the equivalent bilateral secondary OA logic for the hip joint.<\/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 a knee-specific outcome measure for these patients?<\/strong> Pabau&#8217;s <a href=\"https:\/\/pabau.com\/templates\/knee-outcome-survey\/\">knee outcome survey template<\/a> gives practices a scored, repeatable way to track function over time.<\/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>Confirming an orthopedic exam finding for the chart?<\/strong> The <a href=\"https:\/\/pabau.com\/templates\/clunk-test\/\">clunk test template<\/a> standardizes how findings are documented in the record.<\/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>Weighing a new service line or equipment purchase?<\/strong> A <a href=\"https:\/\/pabau.com\/templates\/cost-benefit-analysis-therapy\/\">cost-benefit analysis worksheet<\/a> compares the expected return against the investment.<\/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 different joint arthropathy?<\/strong> <a href=\"https:\/\/pabau.com\/diagnostic-codes\/icd-10-code-m152\/\">M15.2<\/a> covers Bouchard&#8217;s nodes with arthropathy in the hand.<\/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-1785234288261\"><h3 class=\"schema-faq-question\">What is ICD-10 Code M17.2?<\/h3> <p class=\"schema-faq-answer\">ICD-10 Code M17.2 is the billable ICD-10-CM diagnosis code for bilateral post-traumatic osteoarthritis of the knee. It identifies degenerative joint disease affecting both knees where the OA is caused by prior trauma or injury. This distinguishes it from primary, age-related osteoarthritis coded under M17.0.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785234288262\"><h3 class=\"schema-faq-question\">Is M17.2 a billable ICD-10-CM code for FY2026?<\/h3> <p class=\"schema-faq-answer\">Yes. M17.2 is a billable, specific ICD-10-CM code valid for FY2026 (effective October 1, 2025). It is accepted for HIPAA-covered electronic transactions and is exempt from Present on Admission (POA) reporting requirements.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785234288263\"><h3 class=\"schema-faq-question\">What is the difference between M17.2 and M17.11?<\/h3> <p class=\"schema-faq-answer\">M17.2 is bilateral post-traumatic OA (both knees, caused by prior injury). M17.11 is unilateral primary OA of the right knee (one knee, no traumatic cause). If the patient has bilateral OA but no documented traumatic history, the correct code is M17.0, not M17.2.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785234288264\"><h3 class=\"schema-faq-question\">What documentation is required to use ICD-10 Code M17.2?<\/h3> <p class=\"schema-faq-answer\">The clinical record must document three elements. It needs a specific prior trauma affecting the knees, bilateral OA confirmed by exam or imaging, and a causal link between the injury and diagnosis. Missing any one element means the code is not supportable without a provider query.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785234288265\"><h3 class=\"schema-faq-question\">When should I use M17.2 instead of M17.9?<\/h3> <p class=\"schema-faq-answer\">Use M17.2 whenever the record documents bilateral OA with a specific traumatic etiology. M17.9 (unspecified OA of the knee) is appropriate only when the type and laterality genuinely cannot be determined from the available documentation. If the record supports M17.2, using M17.9 is considered under-coding and may attract payer scrutiny.<\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1785234288266\"><h3 class=\"schema-faq-question\">What CPT codes are commonly associated with M17.2?<\/h3> <p class=\"schema-faq-answer\">Common CPT codes paired with M17.2 include 99213\/99214 (office visits), 20610 (joint injection), 73562\/73564 (knee X-ray), 27447 (total knee arthroplasty), and 97110\/97530 (physical therapy). Confirm medical necessity documentation and payer-specific prior authorization requirements before submitting bilateral procedure codes.<\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>ICD-10 Code M17.2 is a billable diagnosis code for bilateral post-traumatic osteoarthritis of the knee, caused by documented trauma affecting both joints. Coders often default to the unspecified M17.9 when the record clearly supports M17.2, which under-codes the diagnosis and raises audit risk. This reference covers the code&#8217;s definition, billable status, documentation requirements, differential coding, [&hellip;]<\/p>\n","protected":false},"author":81,"featured_media":168402,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_linkdex":"88","_yoast_wpseo_content_score":"60","_yoast_wpseo_is_cornerstone":"","_yoast_wpseo_keywordsynonyms":"[\"\",\"\",\"\",\"\",\"\",\"\"]","_yoast_wpseo_focuskw_text_input":"","_seo_original_html":"","footnotes":""},"categories":[1549,1550],"tags":[],"class_list":["post-168403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","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 M17.2: Bilateral post-traumatic osteoarthritis of knee<\/title>\n<meta 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is an all-in-one healthcare practice management software platform designed for clinics, medspas, therapists, and medical professionals. It combines scheduling, electronic health records, clinical forms, payments, marketing automation, reporting, and patient engagement tools into one secure cloud system to help practices streamline operations and grow their business.\",\"foundingDate\":\"2011-10-20\",\"numberOfEmployees\":{\"@type\":\"QuantitativeValue\",\"minValue\":\"201\",\"maxValue\":\"500\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/#\\\/schema\\\/person\\\/73b672a49e20bfba8161e3c17ee3dda2\",\"name\":\"Aleksandar Kochovski\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"de\",\"@id\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"url\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"contentUrl\":\"https:\\\/\\\/pabau.com\\\/wp-content\\\/uploads\\\/2026\\\/06\\\/cropped-aleksandar-kochovski-profile-picture-96x96.jpeg\",\"caption\":\"Aleksandar Kochovski\"},\"description\":\"Aleksandar is a content strategist and editor working in tech publishing, with a background in higher education. He specializes in topics around compliance in software solutions. When he's not writing at Pabau, you can find him tending to his bonsai collection or hitting the gym.\",\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/blog\\\/author\\\/aleksandar-kochovski\\\/\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288261\",\"position\":1,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288261\",\"name\":\"What is ICD-10 Code M17.2?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"ICD-10 Code M17.2 is the billable ICD-10-CM diagnosis code for bilateral post-traumatic osteoarthritis of the knee. It identifies degenerative joint disease affecting both knees where the OA is caused by prior trauma or injury. This distinguishes it from primary, age-related osteoarthritis coded under M17.0.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288262\",\"position\":2,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288262\",\"name\":\"Is M17.2 a billable ICD-10-CM code for FY2026?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. M17.2 is a billable, specific ICD-10-CM code valid for FY2026 (effective October 1, 2025). It is accepted for HIPAA-covered electronic transactions and is exempt from Present on Admission (POA) reporting requirements.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288263\",\"position\":3,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288263\",\"name\":\"What is the difference between M17.2 and M17.11?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"M17.2 is bilateral post-traumatic OA (both knees, caused by prior injury). M17.11 is unilateral primary OA of the right knee (one knee, no traumatic cause). If the patient has bilateral OA but no documented traumatic history, the correct code is M17.0, not M17.2.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288264\",\"position\":4,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288264\",\"name\":\"What documentation is required to use ICD-10 Code M17.2?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The clinical record must document three elements. It needs a specific prior trauma affecting the knees, bilateral OA confirmed by exam or imaging, and a causal link between the injury and diagnosis. Missing any one element means the code is not supportable without a provider query.\",\"inLanguage\":\"de\"},\"inLanguage\":\"de\"},{\"@type\":\"Question\",\"@id\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288265\",\"position\":5,\"url\":\"https:\\\/\\\/pabau.com\\\/de\\\/diagnostic-codes\\\/icd-10-code-m172\\\/#faq-question-1785234288265\",\"name\":\"When should I use M17.2 instead of M17.9?\",\"answerCount\":1,\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Use M17.2 whenever the record documents bilateral OA with a specific traumatic etiology. M17.9 (unspecified OA of the knee) is appropriate only when the type and laterality genuinely cannot be determined from the available documentation. 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This distinguishes it from primary, age-related osteoarthritis coded under M17.0.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288262","position":2,"url":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288262","name":"Is M17.2 a billable ICD-10-CM code for FY2026?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Yes. M17.2 is a billable, specific ICD-10-CM code valid for FY2026 (effective October 1, 2025). 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If the patient has bilateral OA but no documented traumatic history, the correct code is M17.0, not M17.2.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288264","position":4,"url":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288264","name":"What documentation is required to use ICD-10 Code M17.2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"The clinical record must document three elements. It needs a specific prior trauma affecting the knees, bilateral OA confirmed by exam or imaging, and a causal link between the injury and diagnosis. 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If the record supports M17.2, using M17.9 is considered under-coding and may attract payer scrutiny.","inLanguage":"de"},"inLanguage":"de"},{"@type":"Question","@id":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288266","position":6,"url":"https:\/\/pabau.com\/de\/diagnostic-codes\/icd-10-code-m172\/#faq-question-1785234288266","name":"What CPT codes are commonly associated with M17.2?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"Common CPT codes paired with M17.2 include 99213\/99214 (office visits), 20610 (joint injection), 73562\/73564 (knee X-ray), 27447 (total knee arthroplasty), and 97110\/97530 (physical therapy). 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