Coding and coverage · ICD-10-CM

Q66 Congenital deformities of feet

Not billable (header)Chapter 17

Report one of the more specific codes below.

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Codes under this one

  • Q66.0 Congenital talipes equinovarusHeader
  • Q66.1 Congenital talipes calcaneovarusHeader
  • Q66.2 Congenital metatarsus (primus) varusHeader
  • Q66.3 Other congenital varus deformities of feetHeader
  • Q66.4 Congenital talipes calcaneovalgusHeader
  • Q66.5 Congenital pes planusHeader
  • Q66.6 Other congenital valgus deformities of feet
  • Q66.7 Congenital pes cavusHeader
  • Q66.8 Other congenital deformities of feetHeader
  • Q66.9 Congenital deformity of feet, unspecifiedHeader

Instructional notes

Chapter 17

Excludes2Not included here: the patient may have both; report both when both are present.
  • inborn errors of metabolism (E70-E88)
Notes
  • Codes from this chapter are not for use on maternal records

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.
  • reduction defects of feet (Q72.-)
  • valgus deformities (acquired) (M21.0-)
  • varus deformities (acquired) (M21.1-)

Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1) · Q65-Q79 Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.