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M90.661

Billable

Osteitis deformans in neoplastic diseases, right 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 right lower leg (tibia, fibula, or surrounding bone) caused by cancer or other neoplastic diseases.

Coding Tips

  • •Ensure documentation specifies right lower leg to distinguish from left lower leg (M90.662) or unspecified (M90.669)
  • •Link with the underlying neoplastic disease code to document the causal relationship and primary condition

Code Hierarchy

└M90Osteopathies in diseases classified elsewhere└M90.6Osteitis deformans in neoplastic diseases└M90.66Osteitis deformans in neoplastic diseases, lower leg└M90.661Osteitis deformans in neoplastic diseases, right lower leg
└M90.661Osteitis deformans in neoplastic diseases, right lower leg

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