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ICD-10-PCS 2027 procedure code

0NH003ZInsertion of Infusion Device into Skull, Open Approach

✓ Valid for 2027O.R. procedure

Code last changed in FY2022 (effective October 1, 2021). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 0NH003Z

0NH003Z is the ICD-10-PCS code for a insertion procedure on the skull using an open approach with infusion device. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

The same procedure with a different approach is coded 0NH033Z (percutaneous) and 0NH043Z (percutaneous endoscopic).

With a different device, use 0NH004Z (internal fixation device), 0NH005Z (external fixation device), 0NH00MZ (bone growth stimulator) and 0NH00NZ (neurostimulator generator).

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 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Craniotomy with Major Device Implant or Acute Complex CNS Principal Diagnosis”, “Craniotomy and endovascular intracranial procedures”, “Other O.R. Procedures for Injuries” and 1 more.

It was added in FY2022, effective October 1, 2021.

What each character means

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

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

4. Body Part
0Skull
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
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.

MDC 24 · Multiple Significant Trauma · Craniotomy for Multiple Significant Trauma

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
  • FY2022 (effective 10/1/2021): Added
  • No changes since FY2022.

Common questions about 0NH003Z

Is 0NH003Z a valid ICD-10-PCS code for 2027?

Yes. 0NH003Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NH003Z an O.R. procedure?

Yes. 0NH003Z is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NH003Z group to?

Depending on the principal diagnosis, 0NH003Z can group to MS-DRG 023, MS-DRG 024, MS-DRG 025, MS-DRG 026, MS-DRG 027 and MS-DRG 907.