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ICD-10-PCS 2027 procedure code

0H9W00ZDrainage of Right Nipple with Drainage Device, Open Approach

✓ Valid for 2027

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 0H9W00Z

0H9W00Z is the ICD-10-PCS code for a drainage procedure on the right nipple using an open 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 Mastotomy, the ICD-9-CM procedure title it maps to (85.0).

For a different body part, codes include 0H9T00Z (right breast), 0H9U00Z (left breast), 0H9V00Z (bilateral breast) and 0H9X00Z (left nipple).

The same procedure with a different approach is coded 0H9W30Z (percutaneous), 0H9W70Z (via natural or artificial opening), 0H9W80Z (via natural or artificial opening endoscopic) and 0H9WX0Z (external).

With a different device, use 0H9W0ZZ (no device).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
HSkin and Breast
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
WNipple, Right
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
0Drainage Device

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

7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

ICD-9-CM equivalent

Converter →
  • 85.0Mastotomyapproximate

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 0H9W00Z

Is 0H9W00Z a valid ICD-10-PCS code for 2027?

Yes. 0H9W00Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0H9W00Z?

The CMS GEMs map 0H9W00Z to ICD-9-CM 85.0 (Mastotomy).