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ICD-10-PCS 2027 procedure code

0W9G00ZDrainage of Peritoneal Cavity with Drainage Device, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Drainage of Peritoneal Cavity with Drain Dev, 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 0W9G00Z

0W9G00Z is the ICD-10-PCS code for a drainage procedure on the peritoneal cavity 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 other laparotomy, the ICD-9-CM procedure title it maps to (54.19).

For a different body part, codes include 0W9000Z (head), 0W9100Z (cranial cavity), 0W9200Z (face), 0W9300Z (oral cavity and throat), 0W9400Z (upper jaw), 0W9500Z (lower jaw) and 13 more.

The same procedure with a different approach is coded 0W9G30Z (percutaneous) and 0W9G40Z (percutaneous endoscopic).

With a different device, use 0W9G0ZZ (no device).

It is an operating-room procedure in the MS-DRG logic for DRG 361 (Other Circulatory System O.R. Procedures with MCC), DRG 362 (Other Circulatory System O.R. Procedures without MCC), DRG 356 (Other Digestive System O.R. Procedures with MCC), DRG 357 (Other Digestive System O.R. Procedures with CC), DRG 358 (Other Digestive System O.R. Procedures without CC/MCC) and DRG 420 (Hepatobiliary Diagnostic Procedures with MCC), under the surgical categories “Other Circulatory System O.R. Procedures”, “Other Digestive System O.R. Procedures”, “Hepatobiliary Diagnostic Procedures” and 7 more.

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
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
GPeritoneal Cavity

Includes: Abdominal cavity; Gallbladder fossa

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

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 05 · Diseases and Disorders of the Circulatory System · Other Circulatory System O.R. Procedures

MDC 13 · Diseases and Disorders of the Female Reproductive System · Other Female Reproductive System O.R. Procedures

ICD-9-CM equivalent

Converter →
  • 54.19Other laparotomyapproximate

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 0W9G00Z

Is 0W9G00Z a valid ICD-10-PCS code for 2027?

Yes. 0W9G00Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0W9G00Z an O.R. procedure?

Yes. 0W9G00Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0W9G00Z group to?

Depending on the principal diagnosis, 0W9G00Z can group to MS-DRG 361, MS-DRG 362, MS-DRG 356, MS-DRG 357, MS-DRG 358 and MS-DRG 420.

What is the ICD-9 procedure code for 0W9G00Z?

The CMS GEMs map 0W9G00Z to ICD-9-CM 54.19 (Other laparotomy).