ICD-10-CM 2027
ICD-10 code for varus acquired cubitus
From the official ICD-10-CM alphabetic index entry “Cubitus › varus (acquired)”. Page updated September 29, 2026.
About coding varus acquired cubitus
The ICD-10-CM code for varus acquired cubitus is M21.12 (Varus deformity, not elsewhere classified, elbow). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M21.12.
Within M21.1 (varus deformity, not elsewhere classified), M21.12 is specifically for varus deformity, not elsewhere classified, elbow. Related codes cover unspecified site (M21.10), hip (M21.15), knee (M21.16) and ankle (M21.17).
To report this condition, pick the subcode that matches the documentation: M21.121 (elbow), M21.122 (elbow) and M21.129 (elbow).
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 varus acquired cubitus codes (official index)
Common questions about varus acquired cubitus ICD-10 codes
What is the ICD-10 code for varus acquired cubitus?
- M21.12 — Varus deformity, not elsewhere classified, elbow (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Q68.8, E64.3.
What is the ICD-10 code for congenital varus acquired cubitus?
- Q68.8 — Other specified congenital musculoskeletal deformities.
What is the ICD-10 code for sequelae of rickets varus acquired cubitus?
- E64.3 — Sequelae of rickets.
Is M21.12 billable?
- No. M21.12 is a header code. Report one of its more specific subcodes instead.