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M23.51

Billable

Chronic instability of knee, right knee

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Long-term weakness or instability of the right knee joint where the knee feels like it may give way.

Coding Tips

  • •Use this code when chronic instability is specifically documented in the right knee
  • •Document any associated ligament injuries or previous knee trauma that may contribute to the instability

Code Hierarchy

└M23Internal derangement of knee└M23.5Chronic instability of knee└M23.51Chronic instability of knee, right knee
└M23.51Chronic instability of knee, right knee

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