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ICD-10-PCS 2027 procedure code

0WBH0ZZExcision of 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 0WBH0ZZ

0WBH0ZZ is the ICD-10-PCS code for a excision procedure on the retroperitoneum using an open approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.

In plain terms, this corresponds to excision or destruction of peritoneal tissue and retroperitoneal dissection, not otherwise specified, the ICD-9-CM procedure titles it maps to (54.4 and 59.00).

For a different body part, codes include 0WB00ZZ (head), 0WB20ZZ (face), 0WB30ZZ (oral cavity and throat), 0WB40ZZ (upper jaw), 0WB50ZZ (lower jaw), 0WB60ZZ (neck) and 7 more.

The same procedure with a different approach is coded 0WBH3ZZ (percutaneous) and 0WBH4ZZ (percutaneous endoscopic).

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), DRG 358 (Other Digestive System O.R. Procedures without CC/MCC), DRG 515 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with MCC), DRG 516 (Other Musculoskeletal System and Connective Tissue O.R. Procedures with CC) and DRG 517 (Other Musculoskeletal System and Connective Tissue O.R. Procedures without CC/MCC), under the surgical categories “Other Digestive System O.R. Procedures”, “Other Musculoskeletal System and Connective Tissue O.R. Procedures”, “Other Skin, Subcutaneous Tissue and Breast Procedures” and 6 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
BExcision

Cutting out or off, without replacement, a portion of a body part

The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies

Includes: Partial nephrectomy, liver biopsy

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
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different qualifier

MS-DRG v44.0 grouping

All DRGs →

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

MDC 12 · Diseases and Disorders of the Male Reproductive System · Major Male Pelvic Procedures

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

ICD-9-CM equivalent

Converter →
  • 54.4Excision or destruction of peritoneal tissueapproximate
  • 59.00Retroperitoneal dissection, not otherwise specifiedapproximate

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 0WBH0ZZ

Is 0WBH0ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WBH0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WBH0ZZ an O.R. procedure?

Yes. 0WBH0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WBH0ZZ group to?

Depending on the principal diagnosis, 0WBH0ZZ can group to MS-DRG 356, MS-DRG 357, MS-DRG 358, MS-DRG 515, MS-DRG 516 and MS-DRG 517.

What is the ICD-9 procedure code for 0WBH0ZZ?

The CMS GEMs map 0WBH0ZZ to ICD-9-CM 54.4 (Excision or destruction of peritoneal tissue) and 59.00 (Retroperitoneal dissection, not otherwise specified).