Skip to content
Dx

ICD-10-PCS 2027 procedure code

09WH4YZRevision of Other Device in Right Ear, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Revision of Other Device in Right Ear, Perc Endo Approach

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 09WH4YZ

09WH4YZ is the ICD-10-PCS code for a revision procedure on the right ear using a percutaneous endoscopic approach with other device. In ICD-10-PCS, revision means correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.

In plain terms, this corresponds to other operations on middle and inner ear, the ICD-9-CM procedure title it maps to (20.99).

For a different body part, codes include 09WJ4YZ (left ear), 09WK4YZ (nasal mucosa and soft tissue) and 09WY4YZ (sinus).

The same procedure with a different approach is coded 09WH0YZ (open), 09WH3YZ (percutaneous), 09WH7YZ (via natural or artificial opening) and 09WH8YZ (via natural or artificial opening endoscopic).

With a different device, use 09WH40Z (drainage device), 09WH47Z (autologous tissue substitute), 09WH4DZ (intraluminal device), 09WH4JZ (synthetic substitute) and 09WH4KZ (nonautologous tissue substitute).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

It was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
9Ear, Nose, Sinus
3. Operation
WRevision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Revision can include correcting a malfunctioning or displaced device by taking out or putting in components of the device such as a screw or pin

Includes: Adjustment of position of pacemaker lead, recementing of hip prosthesis

4. Body Part
HEar, Right
5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
YOther Device

Includes: Alfapump(R) system

7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 20.99Other operations on middle and inner earapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 09WH4YZ

Is 09WH4YZ a valid ICD-10-PCS code for 2027?

Yes. 09WH4YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09WH4YZ?

The CMS GEMs map 09WH4YZ to ICD-9-CM 20.99 (Other operations on middle and inner ear).