ICD-10-PCS 2027 procedure code
09BU0ZXExcision of Right Ethmoid Sinus, Open Approach, Diagnostic
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 09BU0ZX
09BU0ZX is the ICD-10-PCS code for a excision procedure on the right ethmoid sinus using an open approach (qualifier: diagnostic). In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.
In plain terms, this corresponds to open biopsy of nasal sinus, the ICD-9-CM procedure title it maps to (22.12).
For a different body part, codes include 09B00ZX (right external ear), 09B10ZX (left external ear), 09B30ZX (right external auditory canal), 09B40ZX (left external auditory canal), 09B50ZX (right middle ear), 09B60ZX (left middle ear) and 22 more.
The same procedure with a different approach is coded 09BU3ZX (percutaneous), 09BU4ZX (percutaneous endoscopic) and 09BU8ZX (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
- BExcision
Cutting out or off, without replacement, a portion of a body part
The qualifier DIAGNOSTIC is used to identify excision procedures that are biopsies
Includes: Partial nephrectomy, liver biopsy
- 4. Body Part
- UEthmoid 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
- XDiagnostic
Other versions of this procedure
Different body part
- 09B00ZXExternal Ear, Right
- 09B10ZXExternal Ear, Left
- 09B30ZXExternal Auditory Canal, Right
- 09B40ZXExternal Auditory Canal, Left
- 09B50ZXMiddle Ear, Right
- 09B60ZXMiddle Ear, Left
- 09B70ZXTympanic Membrane, Right
- 09B80ZXTympanic Membrane, Left
- 09B90ZXAuditory Ossicle, Right
- 09BA0ZXAuditory Ossicle, Left
- 09BB0ZXMastoid Sinus, Right
- 09BC0ZXMastoid Sinus, Left
Different approach
Different qualifier
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 →- 22.12Open biopsy of nasal sinusapproximate
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 09BU0ZX
Is 09BU0ZX a valid ICD-10-PCS code for 2027?
- Yes. 09BU0ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 09BU0ZX an O.R. procedure?
- Yes. 09BU0ZX is an O.R. procedure in MS-DRG v44.0.
What DRG does 09BU0ZX group to?
- Depending on the principal diagnosis, 09BU0ZX can group to MS-DRG 135 and MS-DRG 136.
What is the ICD-9 procedure code for 09BU0ZX?
- The CMS GEMs map 09BU0ZX to ICD-9-CM 22.12 (Open biopsy of nasal sinus).