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ICD-10-PCS 2027 procedure code

0CNP3ZZRelease Tonsils, 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 0CNP3ZZ

0CNP3ZZ is the ICD-10-PCS code for a release procedure on the tonsils 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 tonsils and adenoids, the ICD-9-CM procedure title it maps to (28.99).

For a different body part, codes include 0CN03ZZ (upper lip), 0CN13ZZ (lower lip), 0CN23ZZ (hard palate), 0CN33ZZ (soft palate), 0CN43ZZ (buccal mucosa), 0CN53ZZ (upper gingiva) and 18 more.

The same procedure with a different approach is coded 0CNP0ZZ (open) and 0CNPXZZ (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) and DRG 145 (Other Ear, Nose, Mouth and Throat O.R. Procedures without CC/MCC), under the surgical category “Other Ear, Nose, Mouth and Throat O.R. Procedures”.

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
CMouth and Throat
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
PTonsils

Includes: Palatine tonsil

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

Different approach

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 →
  • 28.99Other operations on tonsils and adenoidsapproximate

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 0CNP3ZZ

Is 0CNP3ZZ a valid ICD-10-PCS code for 2027?

Yes. 0CNP3ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0CNP3ZZ an O.R. procedure?

Yes. 0CNP3ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0CNP3ZZ group to?

Depending on the principal diagnosis, 0CNP3ZZ can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 0CNP3ZZ?

The CMS GEMs map 0CNP3ZZ to ICD-9-CM 28.99 (Other operations on tonsils and adenoids).