0WHH4YZInsertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach

  • Billable / Specific Code
ICD-10-PCS 0WHH4YZ
CMS Source: FY 2026 ICD-10-PCS dataset. Effective Oct 1, 2025 – Sep 30, 2026.FacebookXLinkedInPrint

0WHH4YZ is a billable ICD-10-PCS procedure code for Insertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 356, 357, 358. The root operation Insertion involves 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.

Code Identity

ICD-10-PCS Code
0WHH4YZ
Billable Status
Yes — Valid for Submission
Code Describes
Insertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach
Parent Code
Short Description
Insert of Oth Dev into Retroperitoneum, Perc Endo Approach

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1Section0Medical and Surgical
2Body SystemWAnatomical Regions, General
3OperationHInsertion
4BodyPartHRetroperitoneum
5Approach4Percutaneous Endoscopic
6DeviceYOther Device
7QualifierZNo Qualifier

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for 0WHH4YZ under the General Equivalence Mappings.

54.95
Approximate match.

Similar Procedure Codes

Questions About 0WHH4YZ

Is 0WHH4YZ a billable code?

Yes. 0WHH4YZ is a complete seven-character ICD-10-PCS code, specific enough to report Insertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.

What do the characters in 0WHH4YZ mean?

0WHH4YZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character W is the Body System (Anatomical Regions, General); the 3rd character H is the Operation (Insertion); the 4th character H is the BodyPart (Retroperitoneum); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character Y is the Device (Other Device); the 7th character Z is the Qualifier (No Qualifier).

What MS-DRG does 0WHH4YZ group to?

On an inpatient stay, Insertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach maps to MS-DRGs 356, 357, 358, with relative weights from 1.3979 to 4.3928. The MS-DRG sets the fixed Medicare payment for the stay.

What is the ICD-9-PCS equivalent of 0WHH4YZ?

Under the General Equivalence Mappings, Insertion of Other Device into Retroperitoneum, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 54.95. The mapping is approximate, so confirm it fits the documentation.