Skip to content
Dx

ICD-10-PCS 2027 procedure code

0WWH40ZRevision of Drainage Device in Retroperitoneum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Drain Dev in Retroperitoneum, 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 0WWH40Z

0WWH40Z is the ICD-10-PCS code for a revision procedure on the retroperitoneum using a percutaneous endoscopic approach with drainage 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 0WW040Z (head), 0WW140Z (cranial cavity), 0WW240Z (face), 0WW440Z (upper jaw), 0WW540Z (lower jaw), 0WW640Z (neck) and 12 more.

The same procedure with a different approach is coded 0WWH00Z (open), 0WWH30Z (percutaneous) and 0WWHX0Z (external).

With a different device, use 0WWH41Z (radioactive element), 0WWH43Z (infusion device) and 0WWH4YZ (other 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
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

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 0WWH40Z

Is 0WWH40Z a valid ICD-10-PCS code for 2027?

Yes. 0WWH40Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WWH40Z an O.R. procedure?

Yes. 0WWH40Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WWH40Z group to?

Depending on the principal diagnosis, 0WWH40Z can group to MS-DRG 356, MS-DRG 357 and MS-DRG 358.

What is the ICD-9 procedure code for 0WWH40Z?

The CMS GEMs map 0WWH40Z to ICD-9-CM 54.95 (Incision of peritoneum).