ICD-10-PCS 2027 procedure code
09B48ZXExcision of Left External Auditory Canal, Via Natural or Artificial Opening Endoscopic, Diagnostic
Short description: Excision of Left External Auditory Canal, Endo, Diagn
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 09B48ZX
09B48ZX is the ICD-10-PCS code for a excision procedure on the left external auditory canal using a via natural or artificial opening endoscopic 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 biopsy of external ear, the ICD-9-CM procedure title it maps to (18.12).
For a different body part, codes include 09B38ZX (right external auditory canal), 09B58ZX (right middle ear), 09B68ZX (left middle ear), 09B78ZX (right tympanic membrane), 09B88ZX (left tympanic membrane), 09B98ZX (right auditory ossicle) and 20 more.
The same procedure with a different approach is coded 09B40ZX (open), 09B43ZX (percutaneous), 09B44ZX (percutaneous endoscopic), 09B47ZX (via natural or artificial opening) and 09B4XZX (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
- 4External Auditory Canal, Left
Includes: External auditory meatus
- 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
- XDiagnostic
Other versions of this procedure
Different body part
- 09B38ZXExternal Auditory Canal, Right
- 09B58ZXMiddle Ear, Right
- 09B68ZXMiddle Ear, Left
- 09B78ZXTympanic Membrane, Right
- 09B88ZXTympanic Membrane, Left
- 09B98ZXAuditory Ossicle, Right
- 09BA8ZXAuditory Ossicle, Left
- 09BB8ZXMastoid Sinus, Right
- 09BC8ZXMastoid Sinus, Left
- 09BD8ZXInner Ear, Right
- 09BE8ZXInner Ear, Left
- 09BF8ZXEustachian Tube, Right
Different approach
Different qualifier
ICD-9-CM equivalent
Converter →- 18.12Biopsy 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 09B48ZX
Is 09B48ZX a valid ICD-10-PCS code for 2027?
- Yes. 09B48ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 09B48ZX?
- The CMS GEMs map 09B48ZX to ICD-9-CM 18.12 (Biopsy of external ear).