ICD-10-CM 2027
ICD-10 code for humerus acquired deformity
From the official ICD-10-CM alphabetic index entry “Deformity › humerus (acquired)”. Page updated September 29, 2026.
About coding humerus acquired deformity
The ICD-10-CM code for humerus acquired deformity is M21.82 (Other specified acquired deformities of upper arm). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on M21.82.
Within M21.8 (other specified acquired deformities of limbs), M21.82 is specifically for other specified acquired deformities of upper arm. Related codes cover unspecified limb (M21.80), forearm (M21.83), thigh (M21.85) and lower leg (M21.86).
To report this condition, pick the subcode that matches the documentation: M21.821 (arm), M21.822 (arm) and M21.829 (arm).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific humerus acquired deformity codes (official index)
- congenital Q74.0 — Other congenital malformations of upper limb(s), including shoulder girdle
Common questions about humerus acquired deformity ICD-10 codes
What is the ICD-10 code for humerus acquired deformity?
- M21.82 — Other specified acquired deformities of upper arm (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Q74.0.
What is the ICD-10 code for congenital humerus acquired deformity?
- Q74.0 — Other congenital malformations of upper limb(s), including shoulder girdle.
Is M21.82 billable?
- No. M21.82 is a header code. Report one of its more specific subcodes instead.