ICD-10-PCS 2027 procedure code
09B00ZZExcision of Right External Ear, 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 09B00ZZ
09B00ZZ is the ICD-10-PCS code for a excision procedure on the right external ear using an open approach. In ICD-10-PCS, excision means cutting out or off, without replacement, a portion of a body part.
In plain terms, this corresponds to excision or destruction of other lesion of external ear, the ICD-9-CM procedure title it maps to (18.29).
For a different body part, codes include 09B10ZZ (left external ear), 09B30ZZ (right external auditory canal), 09B40ZZ (left external auditory canal), 09B50ZZ (right middle ear), 09B60ZZ (left middle ear), 09B70ZZ (right tympanic membrane) and 22 more.
The same procedure with a different approach is coded 09B03ZZ (percutaneous), 09B04ZZ (percutaneous endoscopic) and 09B0XZZ (external).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
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
- 0External Ear, 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
- 09B10ZZExternal Ear, Left
- 09B30ZZExternal Auditory Canal, Right
- 09B40ZZExternal Auditory Canal, Left
- 09B50ZZMiddle Ear, Right
- 09B60ZZMiddle Ear, Left
- 09B70ZZTympanic Membrane, Right
- 09B80ZZTympanic Membrane, Left
- 09B90ZZAuditory Ossicle, Right
- 09BA0ZZAuditory Ossicle, Left
- 09BB0ZZMastoid Sinus, Right
- 09BC0ZZMastoid Sinus, Left
- 09BD0ZZInner Ear, Right
Different approach
Different qualifier
ICD-9-CM equivalent
Converter →- 18.29Excision or destruction of other lesion of external 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 09B00ZZ
Is 09B00ZZ a valid ICD-10-PCS code for 2027?
- Yes. 09B00ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 09B00ZZ?
- The CMS GEMs map 09B00ZZ to ICD-9-CM 18.29 (Excision or destruction of other lesion of external ear).