2026 ICD-10-CM Diagnosis Code Z42Encounter for plastic and reconstructive surgery following medical procedure or healed injury

ICD-10-CM Codes›Z00–Z99›Z40-Z53›Z42

ICD-10-CM Z42
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z42 is a non-billable ICD-10-CM category code for encounter for plastic and reconstructive surgery following medical procedure or healed injury, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z42.1 and Z42.8.

Code Identity

ICD-10-CM Code
Z42
Billable Status
No — Non-Billable Category
Code Describes
Encounter for plastic and reconstructive surgery following medical procedure or healed injury
Chapter
Z40-Z53
Encounters for other specific health care

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ40-Z53Encounters for other specific health care
CategoryZ42Encounter for plastic and reconstructive surgery following medical procedure or healed injury
This CodeZ42Encounter for plastic and reconstructive surgery following medical procedure or healed injury

Specific Coding for Encntr for plast/recnst surg fol med proc or healed injuryOverview

Non-specific codes like Z42 require more characters. Use one of these billable codes instead:

  • Use Z42.1 for Encounter for breast reconstruction following mastectomy

  • Use Z42.8 for Encounter for other plastic and reconstructive surgery following medical procedure or healed injury

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

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

Patient EducationClinical

Plastic and Cosmetic Surgery

Surgeons can reshape the appearance of body parts through cosmetic surgery. Some of the most common body parts people want to improve through surgery include:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z42Overview

Is Z42 a billable code?

No. This is a category header that groups the codes for encounter for plastic and reconstructive surgery following medical procedure or healed injury, and headers cannot be submitted on claims. Claims for encounter for plastic and reconstructive surgery following medical procedure or healed injury need a more specific code from this category, such as Z42.1 and Z42.8.