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ICD-10-PCS 2027 procedure code

0C9WX02Drainage of Upper Tooth with Drainage Device, External Approach, All

✓ Valid for 2027

Short description: Drainage of Upper Tooth with Drain Dev, Extern Approach, All

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 0C9WX02

0C9WX02 is the ICD-10-PCS code for a drainage procedure on the upper tooth using an external approach with drainage device (qualifier: all). In ICD-10-PCS, drainage means taking or letting out fluids and/or gases from a body part.

In plain terms, this corresponds to other dental operations, the ICD-9-CM procedure title it maps to (24.99).

For a different body part, codes include 0C9XX02 (lower tooth).

The same procedure with a different approach is coded 0C9W002 (open).

With a different device, use 0C9WXZ2 (no 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
WUpper Tooth
5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
2All

Other versions of this procedure

Different body part

Different approach

Different device

Different qualifier

ICD-9-CM equivalent

Converter →
  • 24.99Other dental operationsapproximate

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 0C9WX02

Is 0C9WX02 a valid ICD-10-PCS code for 2027?

Yes. 0C9WX02 is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0C9WX02?

The CMS GEMs map 0C9WX02 to ICD-9-CM 24.99 (Other dental operations).