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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.

Check Z44.31 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above Z44.31

A category’s note binds every code beneath it.

Written on Z44.3: Encounter for fitting and adjustment of external breast prosthesis

  • complications of breast implant (T85.4-)
  • encounter for adjustment or removal of breast implant (Z45.81-)
  • encounter for initial breast implant insertion for cosmetic breast augmentation (Z41.1)
  • encounter for breast reconstruction following mastectomy (Z42.1)

Written on Z44: Encounter for fitting and adjustment of external prosthetic device

  • malfunction or other complications of device - see Alphabetical Index
  • presence of prosthetic device (Z97.-)

Risk adjustment

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

Medicare coverage

Z44.31 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

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

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Z44.3

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.