ICD-10-CM 2027
ICD-10 code for varus congenital metatarsus
From the official ICD-10-CM alphabetic index entry “Metatarsus, metatarsal › varus (congenital)”. Page updated September 29, 2026.
About coding varus congenital metatarsus
The ICD-10-CM code for varus congenital metatarsus is Q66.22 (Congenital metatarsus adductus). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on Q66.22.
Within Q66.2 (congenital metatarsus (primus) varus), Q66.22 is specifically for congenital metatarsus adductus. Related codes cover primus varus (Q66.21).
To report this condition, pick the subcode that matches the documentation: Q66.221 (right foot), Q66.222 (left foot) and Q66.229 (unspecified foot).
It was added in FY2017, effective October 1, 2016, and changed in FY2020.
More specific varus congenital metatarsus codes (official index)
- primus Q66.21 — Congenital metatarsus primus varus
Common questions about varus congenital metatarsus ICD-10 codes
What is the ICD-10 code for varus congenital metatarsus?
- Q66.22 — Congenital metatarsus adductus (a header code; report a more specific subcode). More specific codes apply when the documentation supports them: Q66.21.
What is the ICD-10 code for primus varus congenital metatarsus?
- Q66.21 — Congenital metatarsus primus varus (header code; choose a more specific subcode).
Is Q66.22 billable?
- No. Q66.22 is a header code. Report one of its more specific subcodes instead.