0WHC4GZInsertion of Defibrillator Lead into Mediastinum, Percutaneous Endoscopic Approach
- Billable / Specific Code
0WHC4GZ is a billable ICD-10-PCS procedure code for Insertion of Defibrillator Lead into Mediastinum, 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 265, 275, 276, 277. 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. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Pacemaker and defibrillator procedures.
Code Identity
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.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | W | Anatomical Regions, General |
| 3 | Operation | H | Insertion |
| 4 | BodyPart | C | Mediastinum |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | G | Defibrillator Lead |
| 7 | Qualifier | Z | No Qualifier |
Clinical Classification (CCSR)
AHRQ groups 0WHC4GZ into these clinical categories.
Code History
- 0WHC4YZ — Insertion of Oth Dev into Mediastinum, Perc Endo Approach
Similar Procedure Codes
Questions About 0WHC4GZ
Is 0WHC4GZ a billable code?
Yes. 0WHC4GZ is a complete seven-character ICD-10-PCS code, specific enough to report Insertion of Defibrillator Lead into Mediastinum, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 0WHC4GZ mean?
0WHC4GZ 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 C is the BodyPart (Mediastinum); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character G is the Device (Defibrillator Lead); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 0WHC4GZ group to?
On an inpatient stay, Insertion of Defibrillator Lead into Mediastinum, Percutaneous Endoscopic Approach maps to MS-DRGs 265, 275, 276, 277, with relative weights from 3.6182 to 7.1304. The MS-DRG sets the fixed Medicare payment for the stay.
