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M89.331

Billable

Hypertrophy of bone, right ulna

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

What This Code Means

Abnormal thickening or enlargement of bone in the right forearm bone on the pinky side (ulna).

Coding Tips

  • •The ulna is the longer forearm bone on the pinky finger side
  • •Verify right-sided involvement is documented before coding

Code Hierarchy

└M89Other disorders of bone└M89.3Hypertrophy of bone└M89.33Hypertrophy of bone, ulna and radius└M89.331Hypertrophy of bone, right ulna
└M89.331Hypertrophy of bone, right ulna

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