M23.241
BillableDerangement of anterior horn of lateral 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 M23.241 an HCC code?
No. M23.241 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
M23.241 is the ICD-10-CM diagnosis code for derangement of anterior horn of lateral meniscus due to old tear or injury, right knee. Damage to the front part of the outer knee cartilage (meniscus) on the right knee from an old tear or injury that has caused the cartilage to shift out of place. M23.241 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).
M23.241 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.
This code is specific to the lateral meniscus anterior horn; distinguish from posterior horn codes (M23.25x).
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M23.241 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code is specific to the lateral meniscus anterior horn; distinguish from posterior horn codes (M23.25x)
- •Confirm right knee laterality and that the injury is documented as old or chronic