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ICD-10-PCS 2027 procedure code

09NF0ZZRelease Right Eustachian Tube, Open Approach

✓ Valid for 2027

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 09NF0ZZ

09NF0ZZ is the ICD-10-PCS code for a release procedure on the right eustachian tube using an open 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 operations on eustachian tube, the ICD-9-CM procedure title it maps to (20.8).

For a different body part, codes include 09N00ZZ (right external ear), 09N10ZZ (left external ear), 09N30ZZ (right external auditory canal), 09N40ZZ (left external auditory canal), 09N50ZZ (right middle ear), 09N60ZZ (left middle ear) and 22 more.

The same procedure with a different approach is coded 09NF3ZZ (percutaneous), 09NF4ZZ (percutaneous endoscopic), 09NF7ZZ (via natural or artificial opening) and 09NF8ZZ (via natural or artificial opening endoscopic).

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
FEustachian Tube, Right
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

ICD-9-CM equivalent

Converter →
  • 20.8Operations on eustachian tubeapproximate

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)
  • No changes since FY2016.

Common questions about 09NF0ZZ

Is 09NF0ZZ a valid ICD-10-PCS code for 2027?

Yes. 09NF0ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 09NF0ZZ?

The CMS GEMs map 09NF0ZZ to ICD-9-CM 20.8 (Operations on eustachian tube).