DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

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

  • Header · not billable

Z42 is not billable. The category heads 2 billable codes in FY2027: the 2 codes directly below it.

Index → code

  • Admission (for)breast reconstruction following mastectomy → Z42.1
  • Encounter (with health service) (for)breast reconstruction following mastectomy → Z42.1
  • Admission (for)reconstructive surgery following medical procedure or healed injury NEC → Z42.8

Where it sits

  1. Chapter 21 Factors influencing health status and contact with health services (Z00-Z99)
  2. Z40-Z53 Encounters for other specific health care (Z40-Z53)
  3. Z42 Encounter for plastic and reconstructive surgery following medical procedure or healed injury
Billable codes
2
Subdivisions
2
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
6

Codes in Z42

  1. Z42.1
    Encounter for breast reconstruction following mastectomy
    BillableExempt
    Excludes1 1

    Excludes1

    • deformity and disproportion of reconstructed breast (N65.1-) N65.1
  2. Z42.8
    Encounter for other plastic and reconstructive surgery following medical procedure or healed injury
    BillableExempt

Sources of each column.

Instructions

At Z42

Excludes1

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

Notes that also apply

Block Z40-Z53 instructions (Inclusion terms 1, Excludes2 1): printed on the block page.

Chapter 21 instructions (Notes 3): printed on the chapter 21 page.

Index entries

  • Admission (for)breast reconstruction following mastectomy → Z42.1
  • Encounter (with health service) (for)breast reconstruction following mastectomy → Z42.1
  • Admission (for)plastic and reconstructive surgery following medical procedure or healed injury NEC → Z42.8
  • Admission (for)reconstructive surgery following medical procedure or healed injury NEC → Z42.8
  • Encounter (with health service) (for)plastic and reconstructive surgery following medical procedure or healed injury NEC → Z42.8
  • Encounter (with health service) (for)reconstructive surgery following medical procedure or healed injury NEC → Z42.8

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy