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Q66.1

Q66.1: Congenital talipes calcaneovarus

Non-billable headerICD-10-CM

Q66.1 is a non-billable header ICD-10-CM code for congenital talipes calcaneovarus. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above Q66.1

A category’s note binds every code beneath it.

Written on Q66: Congenital deformities of feet

  • reduction defects of feet (Q72.-)
  • valgus deformities (acquired) (M21.0-)
  • varus deformities (acquired) (M21.1-)

Other codes that can never be billed with Q66.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • M20Acquired deformities of fingers and toes

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Q66.1

3 child codes. Green means billable.

Other codes under Q66

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.