ICD-10-PCS 2027 procedure code
099480ZDrainage of Left External Auditory Canal with Drainage Device, Via Natural or Artificial Opening Endoscopic
Short description: Drainage of L Ext Auditory Canal with Drain Dev, Endo
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 099480Z
099480Z is the ICD-10-PCS code for a drainage procedure on the left external auditory canal using a via natural or artificial opening endoscopic approach with drainage device. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.
In plain terms, this corresponds to incision of external auditory canal, the ICD-9-CM procedure title it maps to (18.02).
For a different body part, codes include 099380Z (right external auditory canal), 099580Z (right middle ear), 099680Z (left middle ear), 099780Z (right tympanic membrane), 099880Z (left tympanic membrane), 099980Z (right auditory ossicle) and 20 more.
The same procedure with a different approach is coded 099400Z (open), 099430Z (percutaneous), 099440Z (percutaneous endoscopic), 099470Z (via natural or artificial opening) and 0994X0Z (external).
With a different device, use 09948ZZ (no device).
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
- 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
- 0Drainage Device
Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 099380ZExternal Auditory Canal, Right
- 099580ZMiddle Ear, Right
- 099680ZMiddle Ear, Left
- 099780ZTympanic Membrane, Right
- 099880ZTympanic Membrane, Left
- 099980ZAuditory Ossicle, Right
- 099A80ZAuditory Ossicle, Left
- 099B80ZMastoid Sinus, Right
- 099C80ZMastoid Sinus, Left
- 099D80ZInner Ear, Right
- 099E80ZInner Ear, Left
- 099F80ZEustachian Tube, Right
Different approach
Different device
ICD-9-CM equivalent
Converter →- 18.02Incision of external auditory canalapproximate
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 099480Z
Is 099480Z a valid ICD-10-PCS code for 2027?
- Yes. 099480Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 099480Z?
- The CMS GEMs map 099480Z to ICD-9-CM 18.02 (Incision of external auditory canal).