ICD-10-PCS 2027 procedure code
0WHC4GZInsertion of Defibrillator Lead into Mediastinum, Percutaneous Endoscopic Approach
Short description: Insertion of Defib Lead into Mediastinum, Perc Endo Approach
Code last changed in FY2024 (effective October 1, 2023). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 0WHC4GZ
0WHC4GZ is the ICD-10-PCS code for a insertion procedure on the mediastinum using a percutaneous endoscopic approach with defibrillator lead. 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.
The same procedure with a different approach is coded 0WHC0GZ (open) and 0WHC3GZ (percutaneous).
With a different device, use 0WHC41Z (radioactive element), 0WHC43Z (infusion device) and 0WHC4YZ (other device).
It is an operating-room procedure in the MS-DRG logic for DRG 265 (AICD Lead Procedures) and DRG 275 (Cardiac Defibrillator Implant with Cardiac Catheterization and MCC), under the surgical categories “AICD Lead Procedures” and “Cardiac Defibrillator Implant with Cardiac Catheterization”.
It was added in FY2024, effective October 1, 2023.
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
- CMediastinum
Includes: Mediastinal cavity; Mediastinal 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
- GDefibrillator Lead
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different approach
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 · AICD Lead Procedures
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2024 (effective 10/1/2023): Added
- No changes since FY2024.
Common questions about 0WHC4GZ
Is 0WHC4GZ a valid ICD-10-PCS code for 2027?
- Yes. 0WHC4GZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 0WHC4GZ an O.R. procedure?
- Yes. 0WHC4GZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 0WHC4GZ group to?
- Depending on the principal diagnosis, 0WHC4GZ can group to MS-DRG 265 and MS-DRG 275.