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ICD-10-PCS 2027 procedure code

09NM8ZZRelease Nasal Septum, Via Natural or Artificial Opening Endoscopic

✓ Valid for 2027

Short description: Release Nasal Septum, 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 09NM8ZZ

09NM8ZZ is the ICD-10-PCS code for a release procedure on the nasal septum using a via natural or artificial opening 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 09N38ZZ (right external auditory canal), 09N48ZZ (left external auditory canal), 09N58ZZ (right middle ear), 09N68ZZ (left middle ear), 09N78ZZ (right tympanic membrane), 09N88ZZ (left tympanic membrane) and 20 more.

The same procedure with a different approach is coded 09NM0ZZ (open), 09NM3ZZ (percutaneous) and 09NM4ZZ (percutaneous endoscopic).

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
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
MNasal Septum

Includes: Quadrangular cartilage; Septal cartilage; Vomer bone

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

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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 09NM8ZZ

Is 09NM8ZZ a valid ICD-10-PCS code for 2027?

Yes. 09NM8ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09NM8ZZ?

The CMS GEMs map 09NM8ZZ to ICD-9-CM 21.91 (Lysis of adhesions of nose).