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ICD-10-PCS 2027 procedure code

0NW033ZRevision of Infusion Device in Skull, Percutaneous Approach

✓ Valid for 2027O.R. procedure

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0NW033Z

0NW033Z is the ICD-10-PCS code for a revision procedure on the skull using a percutaneous approach with infusion device. In ICD-10-PCS, revision means correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device.

The same procedure with a different approach is coded 0NW003Z (open), 0NW043Z (percutaneous endoscopic) and 0NW0X3Z (external).

With a different device, use 0NW030Z (drainage device), 0NW034Z (internal fixation device), 0NW035Z (external fixation device), 0NW037Z (autologous tissue substitute), 0NW03JZ (synthetic substitute), 0NW03KZ (nonautologous tissue substitute) and 2 more.

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) and DRG 027 (Craniotomy and Endovascular Intracranial Procedures without CC/MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis” and “Craniotomy and endovascular intracranial procedures”.

It was added in FY2023, effective October 1, 2022.

What each character means

1. Section
0Medical and Surgical
2. Body System
NHead and Facial Bones
3. Operation
WRevision

Correcting, to the extent possible, a portion of a malfunctioning device or the position of a displaced device

Revision can include correcting a malfunctioning or displaced device by taking out or putting in components of the device such as a screw or pin

Includes: Adjustment of position of pacemaker lead, recementing of hip prosthesis

4. Body Part
0Skull
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
3Infusion Device

Includes: Ascenda Intrathecal Catheter; InDura, intrathecal catheter (1P) (spinal); Non-tunneled central venous catheter; Peripherally inserted central catheter (PICC); Tunneled spinal (intrathecal) catheter

7. Qualifier
ZNo Qualifier

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

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
  • FY2023 (effective 10/1/2022): Added
  • No changes since FY2023.

Common questions about 0NW033Z

Is 0NW033Z a valid ICD-10-PCS code for 2027?

Yes. 0NW033Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NW033Z an O.R. procedure?

Yes. 0NW033Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NW033Z group to?

Depending on the principal diagnosis, 0NW033Z can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026 and MS-DRG 027.