ICD-10-CM 2027
ICD-10 code for toe acquired deformity
From the official ICD-10-CM alphabetic index entry “Deformity › toe (acquired)”. Page updated September 29, 2026.
About coding toe acquired deformity
The ICD-10-CM code for toe acquired deformity is M20.6 (Acquired deformities of toe(s), unspecified). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M20.6.
Within M20, choose M20.6 (Acquired deformities of toe(s), unspecified) only when documentation doesn't support a more specific option: deformity of finger(s) (M20.0), Hallux valgus (acquired) (M20.1), Hallux rigidus (M20.2), Hallux varus (acquired) (M20.3), other hammer toe(s) (acquired) (M20.4) and other deformities of toe(s) (acquired) (M20.5).
To report this condition, pick the subcode that matches the documentation: M20.60 (unspecified foot), M20.61 (right foot) and M20.62 (left foot).
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 toe acquired deformity codes (official index)
Common questions about toe acquired deformity ICD-10 codes
What is the ICD-10 code for toe acquired deformity?
- M20.6 — Acquired deformities of toe(s), unspecified (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Q66.9, M20.2, M20.1, M20.3 and others below.
What is the ICD-10 code for congenital toe acquired deformity?
- Q66.9 — Congenital deformity of feet, unspecified (header code; choose a more specific subcode).
What is the ICD-10 code for hallux rigidus toe acquired deformity?
- M20.2 — Hallux rigidus (header code; choose a more specific subcode).
What is the ICD-10 code for hallux valgus toe acquired deformity?
- M20.1 — Hallux valgus (acquired) (header code; choose a more specific subcode).
What is the ICD-10 code for hallux varus toe acquired deformity?
- M20.3 — Hallux varus (acquired) (header code; choose a more specific subcode).
What is the ICD-10 code for hammer toe toe acquired deformity?
- M20.4 — Other hammer toe(s) (acquired) (header code; choose a more specific subcode).
Is M20.6 billable?
- No. M20.6 is a header code. Report one of its more specific subcodes instead.