09WE8SZRevision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopic
- Billable / Specific Code
09WE8SZ is a billable ICD-10-PCS procedure code for Revision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopic. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) 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. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under ENT procedures, NEC.
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 | E | Inner Ear, Left |
| 5 | Approach | 8 | Via Natural or Artificial Opening Endoscopic |
| 6 | Device | S | Hearing Device |
| 7 | Qualifier | Z | No Qualifier |
In the ICD-10-PCS Alphabetic Index
These FY 2027 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 09WE8SZ
Is 09WE8SZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Revision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopic on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in 09WE8SZ mean?
The code 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 E is the BodyPart (Inner Ear, Left); the 5th character 8 is the Approach (Via Natural or Artificial Opening Endoscopic); the 6th character S is the Device (Hearing Device); the 7th character Z is the Qualifier (No Qualifier).
What MS-DRG does 09WE8SZ group to?
On an inpatient stay, Revision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopic maps to MS-DRGs 143, 144, 145, with relative weights from 1.2335 to 3.8500. The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of 09WE8SZ?
Under the General Equivalence Mappings, Revision of Hearing Device in Left Inner Ear, Via Natural or Artificial Opening Endoscopic crosswalks to ICD-9-PCS 20.99 (Other operations on middle and inner ear). The mapping is approximate, so confirm it fits the documentation.
