ICD-10-PCS 2027 procedure code
095C8ZZDestruction of Left Mastoid Sinus, Via Natural or Artificial Opening Endoscopic
Short description: Destruction of Left Mastoid Sinus, Endo
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 095C8ZZ
095C8ZZ is the ICD-10-PCS code for a destruction procedure on the left mastoid sinus using a via natural or artificial opening endoscopic approach. In ICD-10-PCS, destruction means physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent.
In plain terms, this corresponds to other mastoidectomy, the ICD-9-CM procedure title it maps to (20.49).
For a different body part, codes include 09538ZZ (right external auditory canal), 09548ZZ (left external auditory canal), 09558ZZ (right middle ear), 09568ZZ (left middle ear), 09578ZZ (right tympanic membrane), 09588ZZ (left tympanic membrane) and 20 more.
The same procedure with a different approach is coded 095C0ZZ (open), 095C3ZZ (percutaneous) and 095C4ZZ (percutaneous endoscopic).
It is an operating-room procedure in the MS-DRG logic for DRG 135 (Sinus and Mastoid Procedures with CC/MCC) and DRG 136 (Sinus and Mastoid Procedures without CC/MCC), under the surgical category “Sinus and Mastoid Procedures”.
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
- 5Destruction
Physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent
None of the body part is physically taken out
Includes: Fulguration of rectal polyp, cautery of skin lesion
- 4. Body Part
- CMastoid Sinus, Left
Includes: Mastoid air cells
- 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
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09538ZZExternal Auditory Canal, Right
- 09548ZZExternal Auditory Canal, Left
- 09558ZZMiddle Ear, Right
- 09568ZZMiddle Ear, Left
- 09578ZZTympanic Membrane, Right
- 09588ZZTympanic Membrane, Left
- 09598ZZAuditory Ossicle, Right
- 095A8ZZAuditory Ossicle, Left
- 095B8ZZMastoid Sinus, Right
- 095D8ZZInner Ear, Right
- 095E8ZZInner Ear, Left
- 095F8ZZEustachian Tube, Right
Different approach
MS-DRG v44.0 grouping
All DRGs →Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.
MDC 03 · Diseases and Disorders of the Ear, Nose, Mouth and Throat · Sinus and Mastoid Procedures
ICD-9-CM equivalent
Converter →- 20.49Other mastoidectomyapproximate
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 095C8ZZ
Is 095C8ZZ a valid ICD-10-PCS code for 2027?
- Yes. 095C8ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
Is 095C8ZZ an O.R. procedure?
- Yes. 095C8ZZ is an O.R. procedure in MS-DRG v44.0.
What DRG does 095C8ZZ group to?
- Depending on the principal diagnosis, 095C8ZZ can group to MS-DRG 135 and MS-DRG 136.
What is the ICD-9 procedure code for 095C8ZZ?
- The CMS GEMs map 095C8ZZ to ICD-9-CM 20.49 (Other mastoidectomy).