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ICD-10-PCS 2027 procedure code

09W90KZRevision of Nonautologous Tissue Substitute in Right Auditory Ossicle, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Nonaut Sub in R 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 09W90KZ

09W90KZ is the ICD-10-PCS code for a revision procedure on the right auditory ossicle using an open approach with nonautologous 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 09W70KZ (right tympanic membrane), 09W80KZ (left tympanic membrane), 09WA0KZ (left auditory ossicle), 09WH0KZ (right ear), 09WJ0KZ (left ear) and 09WK0KZ (nasal mucosa and soft tissue).

The same procedure with a different approach is coded 09W97KZ (via natural or artificial opening) and 09W98KZ (via natural or artificial opening endoscopic).

With a different device, use 09W907Z (autologous tissue substitute) and 09W90JZ (synthetic 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
9Auditory Ossicle, 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
KNonautologous Tissue Substitute

Includes: Acellular Hydrated Dermis; Bone bank bone graft; Cook Biodesign(R) Fistula Plug(s); Cook Biodesign(R) Hernia Graft(s); Cook Biodesign(R) Layered Graft(s); Cook Zenapro(tm) Layered Graft(s); Fish skin; Kerecis(R) (GraftGuide) (MariGen) (SurgiBind) (SurgiClose); MIRODERM(tm) Biologic Wound Matrix; Piscine skin; Tissue bank graft

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 09W90KZ

Is 09W90KZ a valid ICD-10-PCS code for 2027?

Yes. 09W90KZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09W90KZ an O.R. procedure?

Yes. 09W90KZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09W90KZ group to?

Depending on the principal diagnosis, 09W90KZ can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 09W90KZ?

The CMS GEMs map 09W90KZ to ICD-9-CM 19.29 (Other revision of stapedectomy).