ICD-10-PCS 2027 procedure code
09934ZXDrainage of Right External Auditory Canal, Percutaneous Endoscopic Approach, Diagnostic
Short description: Drainage of R Ext Auditory Canal, Perc Endo Approach, 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 09934ZX
09934ZX is the ICD-10-PCS code for a drainage procedure on the right external auditory canal using a percutaneous endoscopic approach (qualifier: diagnostic). In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from 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 09904ZX (right external ear), 09914ZX (left external ear), 09944ZX (left external auditory canal), 09974ZX (right tympanic membrane), 09984ZX (left tympanic membrane), 099B4ZX (right mastoid sinus) and 16 more.
The same procedure with a different approach is coded 09930ZX (open), 09933ZX (percutaneous), 09937ZX (via natural or artificial opening), 09938ZX (via natural or artificial opening endoscopic) and 0993XZX (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
- 9Drainage
Taking or letting out fluids and/or gases from a body part
The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies
Includes: Thoracentesis, incision and drainage
- 4. Body Part
- 3External Auditory Canal, 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
- XDiagnostic
Other versions of this procedure
Different body part
- 09904ZXExternal Ear, Right
- 09914ZXExternal Ear, Left
- 09944ZXExternal Auditory Canal, Left
- 09974ZXTympanic Membrane, Right
- 09984ZXTympanic Membrane, Left
- 099B4ZXMastoid Sinus, Right
- 099C4ZXMastoid Sinus, Left
- 099F4ZXEustachian Tube, Right
- 099G4ZXEustachian Tube, Left
- 099K4ZXNasal Mucosa and Soft Tissue
- 099L4ZXNasal Turbinate
- 099M4ZXNasal Septum
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 09934ZX
Is 09934ZX a valid ICD-10-PCS code for 2027?
- Yes. 09934ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 09934ZX?
- The CMS GEMs map 09934ZX to ICD-9-CM 18.12 (Biopsy of external ear).