M12.161
BillableKaschin-Beck disease, right knee
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is M12.161 an HCC code?
No. M12.161 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
M12.161 is the ICD-10-CM diagnosis code for kaschin-beck disease, right knee. Kaschin-Beck disease is a chronic joint disorder caused by selenium deficiency and organic iodine exposure, resulting in joint pain, stiffness, and deformity, specifically affecting the right knee. M12.161 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering inflammatory polyarthropathies (m05-m14).
M12.161 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
Kaschin-Beck disease is endemic to certain regions in Asia; verify patient's geographic history or exposure.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M12.161 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.