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ICD-10-PCS 2027 procedure code

09TA0ZZResection of Left Auditory Ossicle, 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 09TA0ZZ

09TA0ZZ is the ICD-10-PCS code for a resection procedure on the left auditory ossicle using an open approach. In ICD-10-PCS, resection means cutting out or off, without replacement, all of a body part.

In plain terms, this corresponds to other stapedectomy and other operations on ossicular chain, the ICD-9-CM procedure titles it maps to (19.19 and 19.3).

For a different body part, codes include 09T00ZZ (right external ear), 09T10ZZ (left external ear), 09T50ZZ (right middle ear), 09T60ZZ (left middle ear), 09T70ZZ (right tympanic membrane), 09T80ZZ (left tympanic membrane) and 20 more.

The same procedure with a different approach is coded 09TA8ZZ (via natural or artificial opening endoscopic).

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
TResection

Cutting out or off, without replacement, all of a body part

Includes: Total nephrectomy, total lobectomy of lung

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
ZNo Device
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 →
  • 19.19Other stapedectomyapproximate
  • 19.3Other operations on ossicular chainapproximate

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 09TA0ZZ

Is 09TA0ZZ a valid ICD-10-PCS code for 2027?

Yes. 09TA0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09TA0ZZ an O.R. procedure?

Yes. 09TA0ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09TA0ZZ group to?

Depending on the principal diagnosis, 09TA0ZZ can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 09TA0ZZ?

The CMS GEMs map 09TA0ZZ to ICD-9-CM 19.19 (Other stapedectomy) and 19.3 (Other operations on ossicular chain).