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Z44.3

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

Non-billable headerICD-10-CM

Z44.3 is a non-billable header ICD-10-CM code for encounter for fitting and adjustment of external breast prosthesis. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • 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)

Excludes1 inherited from the categories above Z44.3

A category’s note binds every code beneath it.

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.

Alphabetic index entries that lead here

  • Admission›fitting›breast prosthesis(external)
  • Fitting›artificial›breast
  • Fitting›prosthesis›breast
  • Admission›adjustment›breast›prosthesis(external)
  • Admission›adjustment›prosthesis›breast
  • Admission›fitting›prosthesis›breast
  • Fitting›device NOS›prosthetic›breast
  • Admission›adjustment›device NEC›prosthetic›breast
  • Admission›fitting›device NEC›prosthetic›breast

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z44.3

3 child codes. Green means billable.

Other codes under Z44

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.