Coding Guidelines

Includes

  • avascular necrosis of bone

Excludes1 (Mutually Exclusive)

These codes should never be used together with M87

  • M91.-M92 - juvenile osteonecrosis (M91-M92)
  • M90.-M93 - osteochondropathies (M90-M93)

Use Additional Code

  • code to identify major osseous defect, if applicable (M89.7-)

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