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ICD-10-PCS 2027 procedure code

0NP00NZRemoval of Neurostimulator Generator from Skull, Open Approach

✓ Valid for 2027O.R. procedure

Short description: Removal of Neurostim from Skull, Open Approach

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 0NP00NZ

0NP00NZ is the ICD-10-PCS code for a removal procedure on the skull using an open approach with neurostimulator generator. In ICD-10-PCS, removal means taking out or off a device from a body part.

In plain terms, this corresponds to removal of cranial neurostimulator pulse generator, the ICD-9-CM procedure title it maps to (01.29).

With a different device, use 0NP000Z (drainage device), 0NP003Z (infusion device), 0NP004Z (internal fixation device), 0NP005Z (external fixation device), 0NP007Z (autologous tissue substitute), 0NP00JZ (synthetic substitute) and 3 more.

It is an operating-room procedure in the MS-DRG logic for DRG 040 (Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC), DRG 041 (Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator) and DRG 042 (Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC), under the surgical category “Peripheral, Cranial Nerve and Other Nervous System Procedures”.

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
NHead and Facial Bones
3. Operation
PRemoval

Taking out or off a device from a body part

If a device is taken out and a similar device put in without cutting or puncturing the skin or mucous membrane, the procedure is coded to the root operation CHANGE. Otherwise, the procedure for taking out a device is coded to the root operation REMOVAL

Includes: Drainage tube removal, cardiac pacemaker removal

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
NNeurostimulator Generator
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.

ICD-9-CM equivalent

Converter →
  • 01.29Removal of cranial neurostimulator pulse generatorapproximate

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 0NP00NZ

Is 0NP00NZ a valid ICD-10-PCS code for 2027?

Yes. 0NP00NZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0NP00NZ an O.R. procedure?

Yes. 0NP00NZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0NP00NZ group to?

Depending on the principal diagnosis, 0NP00NZ can group to MS-DRG 040, MS-DRG 041 and MS-DRG 042.

What is the ICD-9 procedure code for 0NP00NZ?

The CMS GEMs map 0NP00NZ to ICD-9-CM 01.29 (Removal of cranial neurostimulator pulse generator).