M90.50
BillableOsteonecrosis in diseases classified elsewhere, unspecified site
M90.50 is the ICD-10-CM code for Osteonecrosis in diseases classified elsewhere, unspecified site. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
What this means — in plain language
MedlinePlus · NIHOsteonecrosis is a disease caused by reduced blood flow to bones in the joints. In people with healthy bones, new bone is always replacing old bone. In osteonecrosis, the lack of blood causes the bone to break down faster than the body can make enough new bone. The bone starts to die and may break down. You can have osteonecrosis in one or several bones. It is most common in the upper leg. Other common sites are…
Read more about Osteonecrosis at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Conditions mapped to this code
MedlinePlus · NIHPlain-language health-topic references grounded in MedlinePlus (NIH/NLM).
Frequently asked questions
- What is ICD-10 code M90.50?
- M90.50 is the ICD-10-CM code for "Osteonecrosis in diseases classified elsewhere, unspecified site". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M90.50 a billable code?
- Yes — M90.50 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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