ICD-10-PCS 2027 procedure code
099D7ZZDrainage of Right Inner Ear, Via Natural or Artificial Opening
Short description: Drainage of Right Inner Ear, Via Opening
Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data
About 099D7ZZ
099D7ZZ is the ICD-10-PCS code for a drainage procedure on the right inner ear using a via natural or artificial opening approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.
In plain terms, this corresponds to other incision, excision, and destruction of inner ear, the ICD-9-CM procedure title it maps to (20.79).
For a different body part, codes include 09937ZZ (right external auditory canal), 09947ZZ (left external auditory canal), 09957ZZ (right middle ear), 09967ZZ (left middle ear), 09977ZZ (right tympanic membrane), 09987ZZ (left tympanic membrane) and 20 more.
The same procedure with a different approach is coded 099D0ZZ (open) and 099D8ZZ (via natural or artificial opening endoscopic).
With a different device, use 099D70Z (drainage device).
It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.
It was added in FY2018, effective October 1, 2017.
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
- DInner Ear, Right
- 5. Approach
- 7Via Natural or Artificial Opening
Entry of instrumentation through a natural or artificial external opening to reach the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09937ZZExternal Auditory Canal, Right
- 09947ZZExternal Auditory Canal, Left
- 09957ZZMiddle Ear, Right
- 09967ZZMiddle Ear, Left
- 09977ZZTympanic Membrane, Right
- 09987ZZTympanic Membrane, Left
- 09997ZZAuditory Ossicle, Right
- 099A7ZZAuditory Ossicle, Left
- 099B7ZZMastoid Sinus, Right
- 099C7ZZMastoid Sinus, Left
- 099E7ZZInner Ear, Left
- 099F7ZZEustachian Tube, Right
Different approach
Different device
Different qualifier
ICD-9-CM equivalent
Converter →- 20.79Other incision, excision, and destruction of inner 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
- FY2018 (effective 10/1/2017): Added
- No changes since FY2018.
Common questions about 099D7ZZ
Is 099D7ZZ a valid ICD-10-PCS code for 2027?
- Yes. 099D7ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 099D7ZZ?
- The CMS GEMs map 099D7ZZ to ICD-9-CM 20.79 (Other incision, excision, and destruction of inner ear).