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ICD-10-PCS 2027 procedure code

09WA07ZRevision of Autologous Tissue Substitute in Left Auditory Ossicle, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Autol Sub in L Auditory Ossicle, Open Approach

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 09WA07Z

09WA07Z is the ICD-10-PCS code for a revision procedure on the left auditory ossicle using an open approach with autologous tissue substitute. 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 revision of stapedectomy, the ICD-9-CM procedure title it maps to (19.29).

For a different body part, codes include 09W707Z (right tympanic membrane), 09W807Z (left tympanic membrane), 09W907Z (right auditory ossicle), 09WH07Z (right ear), 09WJ07Z (left ear) and 09WK07Z (nasal mucosa and soft tissue).

The same procedure with a different approach is coded 09WA77Z (via natural or artificial opening) and 09WA87Z (via natural or artificial opening endoscopic).

With a different device, use 09WA0JZ (synthetic substitute) and 09WA0KZ (nonautologous tissue substitute).

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
AAuditory Ossicle, Left

Includes: Incus; Malleus; Stapes

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
7Autologous Tissue Substitute

Includes: Autograft; Cultured epidermal cell autograft; Epicel(R) cultured epidermal autograft

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 →
  • 19.29Other revision of stapedectomyapproximate

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 09WA07Z

Is 09WA07Z a valid ICD-10-PCS code for 2027?

Yes. 09WA07Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09WA07Z an O.R. procedure?

Yes. 09WA07Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 09WA07Z group to?

Depending on the principal diagnosis, 09WA07Z can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 09WA07Z?

The CMS GEMs map 09WA07Z to ICD-9-CM 19.29 (Other revision of stapedectomy).