Skip to content
Dx

ICD-10-PCS 2027 procedure code

09NK4ZZRelease Nasal Mucosa and Soft Tissue, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Release Nasal Mucosa and Soft Tissue, Perc Endo 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 09NK4ZZ

09NK4ZZ is the ICD-10-PCS code for a release procedure on the nasal mucosa and soft tissue using a percutaneous endoscopic approach. In ICD-10-PCS, release means freeing a body part from an abnormal physical constraint by cutting or by the use of force.

In plain terms, this corresponds to lysis of adhesions of nose, the ICD-9-CM procedure title it maps to (21.91).

For a different body part, codes include 09N04ZZ (right external ear), 09N14ZZ (left external ear), 09N34ZZ (right external auditory canal), 09N44ZZ (left external auditory canal), 09N74ZZ (right tympanic membrane), 09N84ZZ (left tympanic membrane) and 16 more.

The same procedure with a different approach is coded 09NK0ZZ (open), 09NK3ZZ (percutaneous), 09NK8ZZ (via natural or artificial opening endoscopic) and 09NKXZZ (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
NRelease

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

Some of the restraining tissue may be taken out but none of the body part is taken out

Includes: Adhesiolysis, carpal tunnel release

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
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
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 21.91Lysis of adhesions of noseapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2018 (effective 10/1/2017): Title revised — was “Release Nose, Percutaneous Endoscopic Approach”

Common questions about 09NK4ZZ

Is 09NK4ZZ a valid ICD-10-PCS code for 2027?

Yes. 09NK4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09NK4ZZ?

The CMS GEMs map 09NK4ZZ to ICD-9-CM 21.91 (Lysis of adhesions of nose).