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M23.341

Billable

Other meniscus derangements, anterior horn of lateral meniscus, right knee

Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)

Is M23.341 an HCC code?

No. M23.341 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

M23.341 is the ICD-10-CM diagnosis code for other meniscus derangements, anterior horn of lateral meniscus, right knee. Damage or displacement of the front portion of the outer cartilage (lateral meniscus) in the right knee. M23.341 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).

M23.341 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 part of the lateral meniscus; ensure documentation specifies this location.

HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for M23.341 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 part of the lateral meniscus; ensure documentation specifies this location
  • Distinguish from posterior horn (M23.351) and other lateral meniscus derangements (M23.361)

Code Hierarchy

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