MCMedicalCodingSoftware
Z42

Z42: Encounter for plastic and reconstructive surgery following medical procedure or healed injury

Non-billable headerICD-10-CM

Z42 is a non-billable header ICD-10-CM code for encounter for plastic and reconstructive surgery following medical procedure or healed injury. 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.

  • encounter for cosmetic plastic surgery (Z41.1)
  • encounter for plastic surgery for treatment of current injury - code to relevent injury

Other codes that can never be billed with Z42

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • Z44.3Encounter for fitting and adjustment of external breast prosthesis
  • Z45.81Encounter for adjustment or removal of breast implant
  • Z41.1Encounter for cosmetic surgery

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z42

2 child codes. Green means billable.

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.