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ICD-10-PCS 2027 procedure code

0WWH43ZRevision of Infusion Device in Retroperitoneum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revise Infusion Dev in Retroperitoneum, Perc Endo

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 0WWH43Z

0WWH43Z is the ICD-10-PCS code for a revision procedure on the retroperitoneum using a percutaneous endoscopic approach with infusion 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 0WW043Z (head), 0WW143Z (cranial cavity), 0WW243Z (face), 0WW443Z (upper jaw), 0WW543Z (lower jaw), 0WW643Z (neck) and 15 more.

The same procedure with a different approach is coded 0WWH03Z (open), 0WWH33Z (percutaneous) and 0WWHX3Z (external).

With a different device, use 0WWH40Z (drainage device), 0WWH41Z (radioactive element) 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
3Infusion Device

Includes: Ascenda Intrathecal Catheter; InDura, intrathecal catheter (1P) (spinal); Non-tunneled central venous catheter; Peripherally inserted central catheter (PICC); Tunneled spinal (intrathecal) catheter

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 0WWH43Z

Is 0WWH43Z a valid ICD-10-PCS code for 2027?

Yes. 0WWH43Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WWH43Z an O.R. procedure?

Yes. 0WWH43Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WWH43Z group to?

Depending on the principal diagnosis, 0WWH43Z can group to MS-DRG 356, MS-DRG 357 and MS-DRG 358.

What is the ICD-9 procedure code for 0WWH43Z?

The CMS GEMs map 0WWH43Z to ICD-9-CM 54.95 (Incision of peritoneum).