ICD-10-PCS 2027 procedure code
09QB0ZZRepair Right Mastoid Sinus, 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 09QB0ZZ
09QB0ZZ is the ICD-10-PCS code for a repair procedure on the right mastoid sinus using an open approach. In ICD-10-PCS, repair means restoring, to the extent possible, a body part to its normal anatomic structure and function.
In plain terms, this corresponds to revision of mastoidectomy, the ICD-9-CM procedure title it maps to (20.92).
For a different body part, codes include 09Q00ZZ (right external ear), 09Q10ZZ (left external ear), 09Q20ZZ (bilateral external ear), 09Q30ZZ (right external auditory canal), 09Q40ZZ (left external auditory canal), 09Q50ZZ (right middle ear) and 23 more.
The same procedure with a different approach is coded 09QB3ZZ (percutaneous), 09QB4ZZ (percutaneous endoscopic) and 09QB8ZZ (via natural or artificial opening endoscopic).
It is an operating-room procedure in the MS-DRG logic for DRG 135 (Sinus and Mastoid Procedures with CC/MCC) and DRG 136 (Sinus and Mastoid Procedures without CC/MCC), under the surgical category “Sinus and Mastoid 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
- QRepair
Restoring, to the extent possible, a body part to its normal anatomic structure and function
Used only when the method to accomplish the repair is not one of the other root operations
Includes: Colostomy takedown, suture of laceration
- 4. Body Part
- BMastoid Sinus, 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
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09Q00ZZExternal Ear, Right
- 09Q10ZZExternal Ear, Left
- 09Q20ZZExternal Ear, Bilateral
- 09Q30ZZExternal Auditory Canal, Right
- 09Q40ZZExternal Auditory Canal, Left
- 09Q50ZZMiddle Ear, Right
- 09Q60ZZMiddle Ear, Left
- 09Q70ZZTympanic Membrane, Right
- 09Q80ZZTympanic Membrane, Left
- 09Q90ZZAuditory Ossicle, Right
- 09QA0ZZAuditory Ossicle, Left
- 09QC0ZZMastoid Sinus, Left
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 · Sinus and Mastoid Procedures
ICD-9-CM equivalent
Converter →- 20.92Revision of mastoidectomyapproximate
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 09QB0ZZ
Is 09QB0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09QB0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 09QB0ZZ an O.R. procedure?
- Yes. 09QB0ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 09QB0ZZ group to?
- Depending on the principal diagnosis, 09QB0ZZ can group to MS-DRG 135 and MS-DRG 136.
What is the ICD-9 procedure code for 09QB0ZZ?
- The CMS GEMs map 09QB0ZZ to ICD-9-CM 20.92 (Revision of mastoidectomy).