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ICD-10-PCS 2027 procedure code

0WJH4ZZInspection of Retroperitoneum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Inspection of 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 0WJH4ZZ

0WJH4ZZ is the ICD-10-PCS code for a inspection procedure on the retroperitoneum using a percutaneous endoscopic approach. In ICD-10-PCS, inspection means visually and/or manually exploring a body part.

In plain terms, this corresponds to other diagnostic procedures on abdominal region and other diagnostic procedures on perirenal tissue, perivesical tissue, and retroperitoneum, the ICD-9-CM procedure titles it maps to (54.29 and 59.29).

For a different body part, codes include 0WJ04ZZ (head), 0WJ14ZZ (cranial cavity), 0WJ24ZZ (face), 0WJ34ZZ (oral cavity and throat), 0WJ44ZZ (upper jaw), 0WJ54ZZ (lower jaw) and 16 more.

The same procedure with a different approach is coded 0WJH0ZZ (open) and 0WJH3ZZ (percutaneous).

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 420 (Hepatobiliary Diagnostic Procedures with MCC), DRG 421 (Hepatobiliary Diagnostic Procedures with CC) and DRG 422 (Hepatobiliary Diagnostic Procedures without CC/MCC), under the surgical categories “Other Digestive System O.R. Procedures”, “Hepatobiliary Diagnostic Procedures”, “Other Female Reproductive System O.R. Procedures” and 5 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
JInspection

Visually and/or manually exploring a body part

Visual exploration may be performed with or without optical instrumentation. Manual exploration may be performed directly or through intervening body layers

Includes: Diagnostic arthroscopy, exploratory laparotomy

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
ZNo Device
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.

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

ICD-9-CM equivalent

Converter →
  • 54.29Other diagnostic procedures on abdominal regionapproximate
  • 59.29Other diagnostic procedures on perirenal tissue, perivesical tissue, and retroperitoneumapproximate

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 0WJH4ZZ

Is 0WJH4ZZ a valid ICD-10-PCS code for 2027?

Yes. 0WJH4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WJH4ZZ an O.R. procedure?

Yes. 0WJH4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0WJH4ZZ group to?

Depending on the principal diagnosis, 0WJH4ZZ can group to MS-DRG 356, MS-DRG 357, MS-DRG 358, MS-DRG 420, MS-DRG 421 and MS-DRG 422.

What is the ICD-9 procedure code for 0WJH4ZZ?

The CMS GEMs map 0WJH4ZZ to ICD-9-CM 54.29 (Other diagnostic procedures on abdominal region) and 59.29 (Other diagnostic procedures on perirenal tissue, perivesical tissue, and retroperitoneum).