ICD-10-PCS 2027 procedure code
099K0ZZDrainage of Nasal Mucosa and Soft Tissue, Open Approach
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 099K0ZZ
099K0ZZ is the ICD-10-PCS code for a drainage procedure on the nasal mucosa and soft tissue using an open 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 incision of nose, the ICD-9-CM procedure title it maps to (21.1).
For a different body part, codes include 09900ZZ (right external ear), 09910ZZ (left external ear), 09930ZZ (right external auditory canal), 09940ZZ (left external auditory canal), 09950ZZ (right middle ear), 09960ZZ (left middle ear) and 22 more.
The same procedure with a different approach is coded 099K3ZZ (percutaneous), 099K4ZZ (percutaneous endoscopic), 099K7ZZ (via natural or artificial opening), 099K8ZZ (via natural or artificial opening endoscopic) and 099KXZZ (external).
With a different device, use 099K00Z (drainage 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
- KNasal Mucosa and Soft Tissue
Includes: Columella; External naris; Greater alar cartilage; Internal naris; Lateral nasal cartilage; Lesser alar cartilage; Nasal cavity; Nostril
- 5. Approach
- 0Open
Cutting through the skin or mucous membrane and any other body layers necessary to expose the site of the procedure
- 6. Device
- ZNo Device
- 7. Qualifier
- ZNo Qualifier
Other versions of this procedure
Different body part
- 09900ZZExternal Ear, Right
- 09910ZZExternal Ear, Left
- 09930ZZExternal Auditory Canal, Right
- 09940ZZExternal Auditory Canal, Left
- 09950ZZMiddle Ear, Right
- 09960ZZMiddle Ear, Left
- 09970ZZTympanic Membrane, Right
- 09980ZZTympanic Membrane, Left
- 09990ZZAuditory Ossicle, Right
- 099A0ZZAuditory Ossicle, Left
- 099B0ZZMastoid Sinus, Right
- 099C0ZZMastoid Sinus, Left
Different approach
Different device
Different qualifier
ICD-9-CM equivalent
Converter →- 21.1Incision of noseapproximate
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)
- FY2018 (effective 10/1/2017): Title revised — was “Drainage of Nose, Open Approach”
Common questions about 099K0ZZ
Is 099K0ZZ a valid ICD-10-PCS code for 2027?
- Yes. 099K0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.
What is the ICD-9 procedure code for 099K0ZZ?
- The CMS GEMs map 099K0ZZ to ICD-9-CM 21.1 (Incision of nose).