Skip to content
Dx

ICD-10-PCS 2027 procedure code

0W9N40ZDrainage of Female Perineum with Drainage Device, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedureFemale only

Short description: Drainage of Fem Perineum with Drain Dev, Perc Endo Approach

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 0W9N40Z

0W9N40Z is the ICD-10-PCS code for a drainage procedure on the perineum, female using a percutaneous endoscopic approach with drainage device. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to other incision of vulva and perineum, the ICD-9-CM procedure title it maps to (71.09).

For a different body part, codes include 0W9040Z (head), 0W9140Z (cranial cavity), 0W9240Z (face), 0W9340Z (oral cavity and throat), 0W9440Z (upper jaw), 0W9540Z (lower jaw) and 13 more.

The same procedure with a different approach is coded 0W9N00Z (open) and 0W9N30Z (percutaneous).

With a different device, use 0W9N4ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC), DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC), DRG 746 (Vagina, Cervix and Vulva Procedures with CC/MCC) and DRG 747 (Vagina, Cervix and Vulva Procedures without CC/MCC), under the surgical categories “Other Skin, Subcutaneous Tissue and Breast Procedures” and “Vagina, Cervix and Vulva Procedures”.

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
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

4. Body Part
NPerineum, Female
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

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 →
  • 71.09Other incision 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 0W9N40Z

Is 0W9N40Z a valid ICD-10-PCS code for 2027?

Yes. 0W9N40Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0W9N40Z an O.R. procedure?

Yes. 0W9N40Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0W9N40Z group to?

Depending on the principal diagnosis, 0W9N40Z can group to MS-DRG 579, MS-DRG 580, MS-DRG 581, MS-DRG 746 and MS-DRG 747.

What is the ICD-9 procedure code for 0W9N40Z?

The CMS GEMs map 0W9N40Z to ICD-9-CM 71.09 (Other incision of vulva and perineum).