00W040ZRevision of Drainage Device in Brain, Percutaneous Endoscopic Approach
- Billable / Specific Code
00W040Z is a billable ICD-10-PCS procedure code for Revision of Drainage Device in Brain, Percutaneous Endoscopic Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to 8 MS-DRGs. 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 | 0 | Central Nervous System and Cranial Nerves |
| 3 | Operation | W | Revision |
| 4 | BodyPart | 0 | Brain |
| 5 | Approach | 4 | Percutaneous Endoscopic |
| 6 | Device | 0 | Drainage Device |
| 7 | Qualifier | Z | No Qualifier |
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for 00W040Z under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 00W040Z
Is 00W040Z a billable code?
Yes. 00W040Z is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Drainage Device in Brain, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 00W040Z mean?
00W040Z breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 0 is the Body System (Central Nervous System and Cranial Nerves); the 3rd character W is the Operation (Revision); the 4th character 0 is the BodyPart (Brain); the 5th character 4 is the Approach (Percutaneous Endoscopic); the 6th character 0 is the Device (Drainage Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 00W040Z group to?
On an inpatient stay, Revision of Drainage Device in Brain, Percutaneous Endoscopic Approach maps to MS-DRGs 023, 024, 025, 026, 027, 907, 908, 909, with relative weights from 1.3127 to 5.7303. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 00W040Z?
Under the General Equivalence Mappings, Revision of Drainage Device in Brain, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 13.9. The mapping is approximate, so confirm it fits the documentation.
