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Q66.10

Q66.10Congenital talipes calcaneovarus, unspecified foot

Billable / specific codeICD-10-CMPOA exemptunspecified

Q66.10 is a billable, specific ICD-10-CM code for congenital talipes calcaneovarus, unspecified foot. It is valid for submission on a claim.

Risk adjustment

Q66.10 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Medicare coverage

Q66.10 is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A53057Billing and Coding: Home Health Occupational Therapy

Code history

Q66.10 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share Q66.1. If Q66.10 is not quite right, the correct code is usually one of these.

Questions about Q66.10

Is Q66.10 a billable ICD-10-CM code?
Yes. Q66.10 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q66.10 sit in the tabular list?
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Congenital malformations and deformations of the musculoskeletal system (Q65-Q79).
ICD-10-CMFY2026-Apr· effective April 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.