M87 Osteonecrosis
The ICD-10-CM code for Osteonecrosis is M87 (FY2026). It is a non-billable category code — select a more specific code below for claims.
Classification
- Section
- M86-M90: Other osteopathies (M86-M90)
- Category M87
- 259 codes (217 billable)
- FY2026 Status
- Stable since FY2024
Official Coding Guidelines
Bone vs joint: bone may be affected at upper or lower end (examples)1) Bone versus joint For certain conditions, the bone may be affected at the upper or lower end, (e.g., avascular necrosis of bone, M87, Osteoporosis, M80, M81).
Osteoporosis without pathological fracture (M81)Category M81, Osteoporosis without current pathological fracture, is for use for patients with osteoporosis who do not currently have a pathologic fracture due to the osteoporosis, even if they have had a fracture in the past. For patients with a history of osteoporosis fractures, status code Z87.310, Personal history of (healed) osteoporosis fracture, should follow the code from M81.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026