M23.211
BillableDerangement of anterior horn of medial meniscus due to old tear or injury, right knee
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is M23.211 an HCC code?
No. M23.211 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
M23.211 is the ICD-10-CM diagnosis code for derangement of anterior horn of medial meniscus due to old tear or injury, right knee. Damage to the front portion of the inner cartilage (anterior horn of medial meniscus) of the right knee from an old tear or injury. M23.211 sits in the ICD-10-CM chapter for diseases of the musculoskeletal system and connective tissue (m00-m99), within the section covering other joint disorders (m20-m25).
M23.211 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.
The anterior horn is the front section of the medial meniscus; ensure documentation specifies this location.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M23.211 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •The anterior horn is the front section of the medial meniscus; ensure documentation specifies this location
- •Correlate with imaging findings (MRI or arthroscopy reports) to confirm the specific anatomical location