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ICD-10-PCS 2027 procedure code

0W0N0ZZAlteration of Female Perineum, Open Approach

✓ Valid for 2027O.R. procedureFemale only

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0W0N0ZZ

0W0N0ZZ is the ICD-10-PCS code for a alteration procedure on the perineum, female using an open approach. In ICD-10-PCS, alteration means modifying the anatomic structure of a body part without affecting the function of the body part.

In plain terms, this corresponds to other repair of vulva and perineum, the ICD-9-CM procedure title it maps to (71.79).

For a different body part, codes include 0W000ZZ (head), 0W020ZZ (face), 0W040ZZ (upper jaw), 0W050ZZ (lower jaw), 0W060ZZ (neck), 0W080ZZ (chest wall) and 4 more.

The same procedure with a different approach is coded 0W0N3ZZ (percutaneous) and 0W0N4ZZ (percutaneous endoscopic).

With a different device, use 0W0N07Z (autologous tissue substitute), 0W0N0JZ (synthetic substitute) and 0W0N0KZ (nonautologous tissue substitute).

It is an operating-room procedure in the MS-DRG logic for DRG 746 (Vagina, Cervix and Vulva Procedures with CC/MCC), DRG 747 (Vagina, Cervix and Vulva Procedures without CC/MCC), DRG 907 (Other O.R. Procedures for Injuries with MCC), DRG 908 (Other O.R. Procedures for Injuries with CC), DRG 909 (Other O.R. Procedures for Injuries without CC/MCC) and DRG 957 (Other O.R. Procedures for Multiple Significant Trauma with MCC), under the surgical categories “Vagina, Cervix and Vulva Procedures”, “Other O.R. Procedures for Injuries” and “Other O.R. Procedures for Multiple Significant Trauma”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
0Medical and Surgical
2. Body System
WAnatomical Regions, General
3. Operation
0Alteration

Modifying the anatomic structure of a body part without affecting the function of the body part

Principal purpose is to improve appearance

Includes: Face lift, breast augmentation

4. Body Part
NPerineum, Female
5. Approach
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 13 · Diseases and Disorders of the Female Reproductive System · Vagina, Cervix and Vulva Procedures

ICD-9-CM equivalent

Converter →
  • 71.79Other repair of vulva and perineumapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 0W0N0ZZ

Is 0W0N0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0W0N0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0W0N0ZZ an O.R. procedure?

Yes. 0W0N0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0W0N0ZZ group to?

Depending on the principal diagnosis, 0W0N0ZZ can group to MS-DRG 746, MS-DRG 747, MS-DRG 907, MS-DRG 908, MS-DRG 909 and MS-DRG 957.

What is the ICD-9 procedure code for 0W0N0ZZ?

The CMS GEMs map 0W0N0ZZ to ICD-9-CM 71.79 (Other repair of vulva and perineum).