Additional Information
From parent codes: M00-M99 (Chapter 13)
More Specific Codes (10)
M90.50Osteonecrosis in diseases classified elsewhere, unspecified site→M90.51Osteonecrosis in diseases classified elsewhere, shoulder→M90.52Osteonecrosis in diseases classified elsewhere, upper arm→M90.53Osteonecrosis in diseases classified elsewhere, forearm→M90.54Osteonecrosis in diseases classified elsewhere, hand→M90.55Osteonecrosis in diseases classified elsewhere, thigh→M90.56Osteonecrosis in diseases classified elsewhere, lower leg→M90.57Osteonecrosis in diseases classified elsewhere, ankle and foot→M90.58Osteonecrosis in diseases classified elsewhere, other site→M90.59Osteonecrosis in diseases classified elsewhere, multiple sites→