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ICD-10-PCS 2027 procedure code

0C9P3ZXDrainage of Tonsils, Percutaneous Approach, Diagnostic

✓ 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 0C9P3ZX

0C9P3ZX is the ICD-10-PCS code for a drainage procedure on the tonsils using a percutaneous approach (qualifier: diagnostic). In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to biopsy of tonsils and adenoids, the ICD-9-CM procedure title it maps to (28.11).

For a different body part, codes include 0C903ZX (upper lip), 0C913ZX (lower lip), 0C923ZX (hard palate), 0C933ZX (soft palate), 0C943ZX (buccal mucosa), 0C953ZX (upper gingiva) and 18 more.

The same procedure with a different approach is coded 0C9P0ZX (open) and 0C9PXZX (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
9Drainage

Taking or letting out fluids and/or gases from a body part

The qualifier DIAGNOSTIC is used to identify drainage procedures that are biopsies

Includes: Thoracentesis, incision and drainage

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
XDiagnostic

Other versions of this procedure

Different approach

Different qualifier

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 →
  • 28.11Biopsy of 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 0C9P3ZX

Is 0C9P3ZX a valid ICD-10-PCS code for 2027?

Yes. 0C9P3ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0C9P3ZX an O.R. procedure?

Yes. 0C9P3ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 0C9P3ZX group to?

Depending on the principal diagnosis, 0C9P3ZX can group to MS-DRG 143, MS-DRG 144 and MS-DRG 145.

What is the ICD-9 procedure code for 0C9P3ZX?

The CMS GEMs map 0C9P3ZX to ICD-9-CM 28.11 (Biopsy of tonsils and adenoids).