Skip to content
Dx

ICD-10-PCS 2027 procedure code

09N13ZZRelease Left External Ear, Percutaneous Approach

✓ Valid for 2027O.R. procedure

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 09N13ZZ

09N13ZZ is the ICD-10-PCS code for a release procedure on the left external ear using a percutaneous 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 other operations on external ear, the ICD-9-CM procedure title it maps to (18.9).

For a different body part, codes include 09N03ZZ (right external ear), 09N33ZZ (right external auditory canal), 09N43ZZ (left external auditory canal), 09N73ZZ (right tympanic membrane), 09N83ZZ (left tympanic membrane), 09NB3ZZ (right mastoid sinus) and 16 more.

The same procedure with a different approach is coded 09N10ZZ (open), 09N14ZZ (percutaneous endoscopic) and 09N1XZZ (external).

It is an operating-room procedure in the MS-DRG logic for DRG 143 (Other Ear, Nose, Mouth and Throat O.R. Procedures with MCC), DRG 144 (Other Ear, Nose, Mouth and Throat O.R. Procedures with CC), DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), DRG 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC) and DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC), under the surgical categories “Other Ear, Nose, Mouth and Throat O.R. Procedures”, “Other Skin, Subcutaneous Tissue and Breast Procedures”, “Other O.R. Procedures for Injuries” and 1 more.

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
1External Ear, Left
5. Approach
3Percutaneous

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach the site of the procedure

6. Device
ZNo Device
7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 18.9Other operations on external earapproximate

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 09N13ZZ

Is 09N13ZZ a valid ICD-10-PCS code for 2027?

Yes. 09N13ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 09N13ZZ an O.R. procedure?

Yes. 09N13ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 09N13ZZ group to?

Depending on the principal diagnosis, 09N13ZZ can group to MS-DRG 143, MS-DRG 144, MS-DRG 145, MS-DRG 579, MS-DRG 580 and MS-DRG 581.

What is the ICD-9 procedure code for 09N13ZZ?

The CMS GEMs map 09N13ZZ to ICD-9-CM 18.9 (Other operations on external ear).