Is Q66.81 a billable ICD-10-CM code?

Yes. Q66.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q66.81 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).

Q66.81

Q66.81 — Congenital vertical talus deformity, right foot

Billable / specific codeICD-10-CMPOA exemptright

Q66.81 is a billable, specific ICD-10-CM code for congenital vertical talus deformity, right foot. It is valid for submission on a claim.

Risk adjustment

Q66.81 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.

How Q66.81 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to Q66.81.

Vertical talus›right foot
Deformity›vertical talus›right foot

Related codes at this level

Codes that share Q66.8. If Q66.81 is not quite right, the correct code is usually one of these.

Questions about Q66.81

Is Q66.81 a billable ICD-10-CM code?: Yes. Q66.81 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q66.81 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).