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ICD-10-PCS 2027 procedure code

0W910ZXDrainage of Cranial Cavity, Open 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 0W910ZX

0W910ZX is the ICD-10-PCS code for a drainage procedure on the cranial cavity using an open 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 open biopsy of brain, the ICD-9-CM procedure title it maps to (01.14).

For a different body part, codes include 0W900ZX (head), 0W920ZX (face), 0W930ZX (oral cavity and throat), 0W940ZX (upper jaw), 0W950ZX (lower jaw), 0W960ZX (neck) and 13 more.

The same procedure with a different approach is coded 0W913ZX (percutaneous) and 0W914ZX (percutaneous endoscopic).

It is an operating-room procedure in the MS-DRG logic for DRG 023 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis with MCC or Antineoplastic Implant or Epilepsy with Neurostimulator), DRG 024 (Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis without MCC), DRG 025 (Craniotomy and Endovascular Intracranial Procedures with MCC), DRG 026 (Craniotomy and Endovascular Intracranial Procedures with CC), DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC) and DRG 820 (Lymphoma and Leukemia with Major O.R. Procedures with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Lymphoma and Leukemia with Major O.R. Procedures” 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
WAnatomical Regions, General
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
1Cranial Cavity
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
XDiagnostic

Other versions of this procedure

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 →
  • 01.14Open biopsy of brainapproximate

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 0W910ZX

Is 0W910ZX a valid ICD-10-PCS code for 2027?

Yes. 0W910ZX is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0W910ZX an O.R. procedure?

Yes. 0W910ZX is an O.R. procedure in MS-DRG v44.0.

What DRG does 0W910ZX group to?

Depending on the principal diagnosis, 0W910ZX can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 820.

What is the ICD-9 procedure code for 0W910ZX?

The CMS GEMs map 0W910ZX to ICD-9-CM 01.14 (Open biopsy of brain).