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ICD-10-PCS 2027 procedure code

09WH00ZRevision of Drainage Device in Right Ear, Open Approach

✓ Valid for 2027O.R. procedure

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 09WH00Z

09WH00Z is the ICD-10-PCS code for a revision procedure on the right ear using an open approach with drainage 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 09WJ00Z (left ear), 09WK00Z (nasal mucosa and soft tissue) and 09WY00Z (sinus).

The same procedure with a different approach is coded 09WH30Z (percutaneous), 09WH40Z (percutaneous endoscopic), 09WH70Z (via natural or artificial opening), 09WH80Z (via natural or artificial opening endoscopic) and 09WHX0Z (external).

With a different device, use 09WH07Z (autologous tissue substitute), 09WH0DZ (intraluminal device), 09WH0JZ (synthetic substitute), 09WH0KZ (nonautologous tissue substitute) and 09WH0YZ (other device).

It is an operating-room procedure in the MS-DRG logic for DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical category “Other Ear, Nose, Mouth and Throat O.R. Procedures”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

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
0Open

Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about 09WH00Z

Is 09WH00Z a valid ICD-10-PCS code for 2027?

Yes. 09WH00Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09WH00Z an O.R. procedure?

Yes. 09WH00Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 09WH00Z group to?

Depending on the principal diagnosis, 09WH00Z can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 09WH00Z?

The CMS GEMs map 09WH00Z to ICD-9-CM 20.99 (Other operations on middle and inner ear).