09WH40ZRevision of Drainage Device in Right Ear, Percutaneous Endoscopic Approach
- Billable / Specific Code
09WH40Z is a billable ICD-10-PCS procedure code for Revision of Drainage Device in Right Ear, 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 143, 144, 145. 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 | 9 | Ear, Nose, Sinus |
| 3 | Operation | W | Revision |
| 4 | BodyPart | H | Ear, Right |
| 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 09WH40Z under the General Equivalence Mappings.
Similar Procedure Codes
Questions About 09WH40Z
Is 09WH40Z a billable code?
Yes. 09WH40Z is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Drainage Device in Right Ear, Percutaneous Endoscopic Approach on inpatient claims from October 1, 2025 through September 30, 2026.
What do the characters in 09WH40Z mean?
09WH40Z breaks down character by character: the 1st character 0 is the Section (Medical and Surgical); the 2nd character 9 is the Body System (Ear, Nose, Sinus); the 3rd character W is the Operation (Revision); the 4th character H is the BodyPart (Ear, Right); 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 09WH40Z group to?
On an inpatient stay, Revision of Drainage Device in Right Ear, Percutaneous Endoscopic Approach maps to MS-DRGs 143, 144, 145, with relative weights from 1.2023 to 3.7466. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 09WH40Z?
Under the General Equivalence Mappings, Revision of Drainage Device in Right Ear, Percutaneous Endoscopic Approach crosswalks to ICD-9-PCS 20.99. The mapping is approximate, so confirm it fits the documentation.
