M90.549: Osteonecrosis in diseases classified elsewhere, unspecified hand
M90.549 is the billable ICD-10-CM diagnosis code for Osteonecrosis in diseases classified elsewhere, unspecified hand. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code M90.549?
M90.549 is the ICD-10-CM diagnosis code for Osteonecrosis in diseases classified elsewhere, unspecified hand. It belongs to category M90 (Osteopathies in diseases classified elsewhere).
Is M90.549 a billable code?
Yes. M90.549 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does M90.549 belong to?
M90.549 is part of ICD-10-CM category M90 — Osteopathies in diseases classified elsewhere, which has 144 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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