M21.90
BillableUnspecified acquired deformity of unspecified limb
M21.90 is the ICD-10-CM code for Unspecified acquired deformity of unspecified limb. It is a billable, specific code valid for reimbursement.
M00-M99 Diseases of the musculoskeletal system and connective tissue
No additional coding notes for this code.
Frequently asked questions
- What is ICD-10 code M21.90?
- M21.90 is the ICD-10-CM code for "Unspecified acquired deformity of unspecified limb". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
- Is M21.90 a billable code?
- Yes — M21.90 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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