0WWK00ZRevision of Drainage Device in Upper Back, Open Approach
- Billable / Specific Code
0WWK00Z is a billable ICD-10-PCS procedure code for Revision of Drainage Device in Upper Back, Open Approach. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRGs 579, 580, 581. The root operation Revision involves correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Incision and drainage of musculoskeletal tissue and joints.
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 | W | Revision |
| 4 | BodyPart | K | Upper Back |
| 5 | Approach | 0 | Open |
| 6 | Device | 0 | Drainage Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
These FY 2026 ICD-10-PCS Alphabetic Index entries lead to this code:
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 0WWK00Z
Is 0WWK00Z a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Drainage Device in Upper Back, Open Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 0WWK00Z mean?
The code 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 W is the Operation (Revision); the 4th character K is the BodyPart (Upper Back); the 5th character 0 is the Approach (Open); the 6th character 0 is the Device (Drainage Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 0WWK00Z group to?
On an inpatient stay, Revision of Drainage Device in Upper Back, Open Approach maps to MS-DRGs 579, 580, 581, with relative weights from 1.4431 to 3.2385. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 0WWK00Z?
Under the General Equivalence Mappings, Revision of Drainage Device in Upper Back, Open Approach crosswalks to ICD-9-PCS 86.09 (Other incision of skin and subcutaneous tissue). The mapping is approximate, so confirm it fits the documentation.
