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ICD-10-PCS 2027 procedure code

0WHH03ZInsertion of Infusion Device into Retroperitoneum, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Insert of Infusion Dev into Retroperitoneum, Open 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 0WHH03Z

0WHH03Z is the ICD-10-PCS code for a insertion procedure on the retroperitoneum using an open approach with infusion device. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

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 0WH003Z (head), 0WH103Z (cranial cavity), 0WH203Z (face), 0WH303Z (oral cavity and throat), 0WH403Z (upper jaw), 0WH503Z (lower jaw) and 16 more.

The same procedure with a different approach is coded 0WHH33Z (percutaneous) and 0WHH43Z (percutaneous endoscopic).

With a different device, use 0WHH01Z (radioactive element) and 0WHH0YZ (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
HInsertion

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

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
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 0WHH03Z

Is 0WHH03Z a valid ICD-10-PCS code for 2027?

Yes. 0WHH03Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WHH03Z an O.R. procedure?

Yes. 0WHH03Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WHH03Z group to?

Depending on the principal diagnosis, 0WHH03Z can group to MS-DRG 356, MS-DRG 357 and MS-DRG 358.

What is the ICD-9 procedure code for 0WHH03Z?

The CMS GEMs map 0WHH03Z to ICD-9-CM 54.95 (Incision of peritoneum).