ICD-10-PCS 2027 procedure code
09DB4ZZExtraction of Right Mastoid Sinus, Percutaneous Endoscopic Approach
Short description: Extraction of Right Mastoid Sinus, Perc Endo 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 09DB4ZZ
09DB4ZZ is the ICD-10-PCS code for a extraction procedure on the right mastoid sinus using a percutaneous endoscopic approach. In ICD-10-PCS, extraction means pulling or stripping out or off all or a portion of a body part by the use of force.
In plain terms, this corresponds to other mastoidectomy, the ICD-9-CM procedure title it maps to (20.49).
For a different body part, codes include 09D74ZZ (right tympanic membrane), 09D84ZZ (left tympanic membrane), 09DC4ZZ (left mastoid sinus), 09DL4ZZ (nasal turbinate), 09DM4ZZ (nasal septum), 09DP4ZZ (accessory sinus) and 8 more.
The same procedure with a different approach is coded 09DB0ZZ (open) and 09DB3ZZ (percutaneous).
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
- DExtraction
Pulling or stripping out or off all or a portion of a body part by the use of force
The qualifier DIAGNOSTIC is used to identify extraction procedures that are biopsies
Includes: Dilation and curettage, vein stripping
- 4. Body Part
- BMastoid Sinus, Right
- 5. Approach
- 4Percutaneous Endoscopic
Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary 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
- 09D74ZZTympanic Membrane, Right
- 09D84ZZTympanic Membrane, Left
- 09DC4ZZMastoid Sinus, Left
- 09DL4ZZNasal Turbinate
- 09DM4ZZNasal Septum
- 09DP4ZZAccessory Sinus
- 09DQ4ZZMaxillary Sinus, Right
- 09DR4ZZMaxillary Sinus, Left
- 09DS4ZZFrontal Sinus, Right
- 09DT4ZZFrontal Sinus, Left
- 09DU4ZZEthmoid Sinus, Right
- 09DV4ZZEthmoid Sinus, Left
Different approach
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 →- 20.49Other 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 09DB4ZZ
Is 09DB4ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09DB4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 09DB4ZZ an O.R. procedure?
- Yes. 09DB4ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 09DB4ZZ group to?
- Depending on the principal diagnosis, 09DB4ZZ can group to MS-DRG 135 and MS-DRG 136.
What is the ICD-9 procedure code for 09DB4ZZ?
- The CMS GEMs map 09DB4ZZ to ICD-9-CM 20.49 (Other mastoidectomy).