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ICD-10-PCS 2027 procedure code

0C950ZZDrainage of Upper Gingiva, 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 0C950ZZ

0C950ZZ is the ICD-10-PCS code for a drainage procedure on the upper gingiva using an open approach. In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to incision of gum or alveolar bone, the ICD-9-CM procedure title it maps to (24.0).

For a different body part, codes include 0C900ZZ (upper lip), 0C910ZZ (lower lip), 0C920ZZ (hard palate), 0C930ZZ (soft palate), 0C940ZZ (buccal mucosa), 0C960ZZ (lower gingiva) and 18 more.

The same procedure with a different approach is coded 0C953ZZ (percutaneous) and 0C95XZZ (external).

With a different device, use 0C9500Z (drainage device).

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
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
5Upper Gingiva
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

Different device

Different qualifier

ICD-9-CM equivalent

Converter →
  • 24.0Incision of gum or alveolar boneapproximate

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 0C950ZZ

Is 0C950ZZ a valid ICD-10-PCS code for 2027?

Yes. 0C950ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0C950ZZ?

The CMS GEMs map 0C950ZZ to ICD-9-CM 24.0 (Incision of gum or alveolar bone).