Is Z44.31 a billable ICD-10-CM code?

Yes. Z44.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does Z44.31 sit in the tabular list?

Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).

Z44.31

Z44.31 — Encounter for fitting and adjustment of external right breast prosthesis

Billable / specific codeICD-10-CMPOA exemptright

Z44.31 is a billable, specific ICD-10-CM code for encounter for fitting and adjustment of external right breast prosthesis. It is valid for submission on a claim.

Risk adjustment

Z44.31 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.

Medicare coverage

Z44.31 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A56658Billing and Coding: Cosmetic and Reconstructive Surgery
A58774Billing and Coding: Cosmetic and Reconstructive Surgery
A59299Billing and Coding: Cosmetic and Reconstructive Surgery

Code history

Z44.31 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 Z44.3. If Z44.31 is not quite right, the correct code is usually one of these.

Questions about Z44.31

Is Z44.31 a billable ICD-10-CM code?: Yes. Z44.31 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z44.31 sit in the tabular list?: Factors influencing health status and contact with health services (Z00-Z99), in the block Encounters for other specific health care (Z40-Z53).