Skip to content
Dx

ICD-10-PCS 2027 procedure code

0WWH0YZRevision of Other Device in Retroperitoneum, Open Approach

✓ Valid for 2027O.R. procedure

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 0WWH0YZ

0WWH0YZ is the ICD-10-PCS code for a revision procedure on the retroperitoneum using an open approach with other device. In ICD-10-PCS, revision means correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.

In plain terms, this corresponds to incision of peritoneum, the ICD-9-CM procedure title it maps to (54.95).

For a different body part, codes include 0WW00YZ (head), 0WW10YZ (cranial cavity), 0WW20YZ (face), 0WW40YZ (upper jaw), 0WW50YZ (lower jaw), 0WW60YZ (neck) and 15 more.

The same procedure with a different approach is coded 0WWH3YZ (percutaneous), 0WWH4YZ (percutaneous endoscopic) and 0WWHXYZ (external).

With a different device, use 0WWH00Z (drainage device), 0WWH01Z (radioactive element) and 0WWH03Z (infusion device).

It is an operating-room procedure in the MS-DRG logic for DRG 356 (Other Digestive System O.R. Procedures with MCC), DRG 357 (Other Digestive System O.R. Procedures with CC) and DRG 358 (Other Digestive System O.R. Procedures without CC/MCC), under the surgical category “Other Digestive System O.R. 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
WRevision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Revision can include correcting a malfunctioning or displaced device by taking out or putting in components of the device such as a screw or pin

Includes: Adjustment of position of pacemaker lead, recementing of hip prosthesis

4. Body Part
HRetroperitoneum

Includes: Retroperitoneal cavity; Retroperitoneal space

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
YOther Device

Includes: Alfapump(R) system

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.

ICD-9-CM equivalent

Converter →
  • 54.95Incision of peritoneumapproximate

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 0WWH0YZ

Is 0WWH0YZ a valid ICD-10-PCS code for 2027?

Yes. 0WWH0YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WWH0YZ an O.R. procedure?

Yes. 0WWH0YZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WWH0YZ group to?

Depending on the principal diagnosis, 0WWH0YZ can group to MS-DRG 356, MS-DRG 357 and MS-DRG 358.

What is the ICD-9 procedure code for 0WWH0YZ?

The CMS GEMs map 0WWH0YZ to ICD-9-CM 54.95 (Incision of peritoneum).