Is Q70.31 a billable ICD-10-CM code?

Yes. Q70.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Q70.31 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).

Q70.31

Q70.31 — Webbed toes, right foot

Billable / specific codeICD-10-CMPOA exemptright

Q70.31 is a billable, specific ICD-10-CM code for webbed toes, right foot. It is valid for submission on a claim.

Other codes that can never be billed with Q70.31

These codes carry an Excludes1 note pointing at Q70.31. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Q70.31 alone.

Q74Other congenital malformations of limb(s)

Risk adjustment

Q70.31 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.

Code history

Q70.31 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 Q70.3. If Q70.31 is not quite right, the correct code is usually one of these.

Questions about Q70.31

Is Q70.31 a billable ICD-10-CM code?: Yes. Q70.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Q70.31 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).