M23.252
BillableDerangement of posterior horn of lateral meniscus due to old tear or injury, left knee
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is M23.252 an HCC code?
No. M23.252 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
M23.252 is the ICD-10-CM diagnosis code for derangement of posterior horn of lateral meniscus due to old tear or injury, left knee. Damage to the back part of the outer knee cartilage (meniscus) on the left knee from an old tear or injury that has caused the cartilage to shift out of place. M23.252 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).
M23.252 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.
Confirm left knee laterality in documentation before assigning this specific code.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M23.252 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Confirm left knee laterality in documentation before assigning this specific code
- •Ensure the meniscal tear is documented as old or chronic rather than acute