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M90.662

Billable

Osteitis deformans in neoplastic diseases, left lower leg

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

What This Code Means

Bone deformity and inflammation in the left lower leg (tibia, fibula, or surrounding bone) caused by cancer or other neoplastic diseases.

Coding Tips

  • Verify left lower leg laterality is clearly documented to avoid miscoding as right lower leg (M90.661)
  • Always include the primary neoplastic disease code to establish the underlying cause of the bone deformity

Code Hierarchy

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