ICD-10-PCS 2027 procedure code
09T78ZZResection of Right Tympanic Membrane, Via Natural or Artificial Opening Endoscopic
Short description: Resection of Right Tympanic Membrane, Endo
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 09T78ZZ
09T78ZZ is the ICD-10-PCS code for a resection procedure on the right tympanic membrane using a via natural or artificial opening endoscopic 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 excision of middle ear, the ICD-9-CM procedure title it maps to (20.59).
For a different body part, codes include 09T58ZZ (right middle ear), 09T68ZZ (left middle ear), 09T88ZZ (left tympanic membrane), 09T98ZZ (right auditory ossicle), 09TA8ZZ (left auditory ossicle), 09TB8ZZ (right mastoid sinus) and 18 more.
The same procedure with a different approach is coded 09T70ZZ (open), 09T74ZZ (percutaneous endoscopic) and 09T77ZZ (via natural or artificial opening).
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
- 7Tympanic Membrane, Right
- 5. Approach
- 8Via Natural or Artificial Opening Endoscopic
Entry of instrumentation through a natural or artificial external opening to reach and visualize the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09T58ZZMiddle Ear, Right
- 09T68ZZMiddle Ear, Left
- 09T88ZZTympanic Membrane, Left
- 09T98ZZAuditory Ossicle, Right
- 09TA8ZZAuditory Ossicle, Left
- 09TB8ZZMastoid Sinus, Right
- 09TC8ZZMastoid Sinus, Left
- 09TD8ZZInner Ear, Right
- 09TE8ZZInner Ear, Left
- 09TF8ZZEustachian Tube, Right
- 09TG8ZZEustachian Tube, Left
- 09TK8ZZNasal Mucosa and Soft Tissue
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Other Ear, Nose, Mouth and Throat O.R. Procedures
ICD-9-CM equivalent
Converter →- 20.59Other excision of middle earapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about 09T78ZZ
Is 09T78ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09T78ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 09T78ZZ an O.R. procedure?
- Yes. 09T78ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 09T78ZZ group to?
- Depending on the principal diagnosis, 09T78ZZ can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.
What is the ICD-9 procedure code for 09T78ZZ?
- The CMS GEMs map 09T78ZZ to ICD-9-CM 20.59 (Other excision of middle ear).