05W40MZRevision of Neurostimulator Lead in Left Innominate Vein, Open Approach
- Billable / Specific Code
05W40MZ is a billable ICD-10-PCS procedure code for Revision of Neurostimulator Lead in Left Innominate Vein, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 040, 041, 042. The root operation Revision involves correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.
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 | 5 | Upper Veins |
| 3 | Operation | W | Revision |
| 4 | BodyPart | 4 | Innominate Vein, Left |
| 5 | Approach | 0 | Open |
| 6 | Device | M | Neurostimulator Lead |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 05W40MZ under the General Equivalence Mappings.
Code History
- 01WY0MZ — Revision of Neuro Lead in Periph Nrv, Open Approach
Similar Procedure Codes
Questions About 05W40MZ
Is 05W40MZ a billable code?
Yes. 05W40MZ is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Neurostimulator Lead in Left Innominate Vein, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 05W40MZ mean?
05W40MZ breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 5 is the Body System (Upper Veins); the 3rd character W is the Operation (Revision); the 4th character 4 is the BodyPart (Innominate Vein, Left); the 5th character 0 is the Approach (Open); the 6th character M is the Device (Neurostimulator Lead); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 05W40MZ group to?
On an inpatient stay, Revision of Neurostimulator Lead in Left Innominate Vein, Open Approach maps to MS-DRGs 040, 041, 042, with relative weights from 1.7277 to 3.8612. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 05W40MZ?
Under the General Equivalence Mappings, Revision of Neurostimulator Lead in Left Innominate Vein, Open Approach crosswalks to ICD-9-PCS 49.2. The mapping is approximate, so confirm it fits the documentation.
