Skip to content

M17.12

Billable

Unilateral primary osteoarthritis, left knee

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

What This Code Means

Osteoarthritis of the left knee that develops naturally over time as a result of aging and wear on the joint.

Coding Tips

  • Confirm documentation indicates the left knee is the affected side and osteoarthritis is primary
  • This code provides clear laterality and should be used when the left knee is documented as affected

Code Hierarchy

Open M17.12 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.