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M17.9

Billable

Osteoarthritis of knee, unspecified

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

What This Code Means

Osteoarthritis of the knee when the specific type, cause, or affected side is not specified in the medical record.

Coding Tips

  • •This is the least specific knee osteoarthritis code; use only when more specific information is unavailable
  • •Query provider for clarification on laterality, etiology (primary vs. secondary), and bilateral vs. unilateral involvement

Code Hierarchy

└M17Osteoarthritis of knee└M17.9Osteoarthritis of knee, unspecified
└M17.9Osteoarthritis of knee, unspecified

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