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ICD-10-PCS 2027 procedure code

00WE0YZRevision of Other Device in Cranial Nerve, Open Approach

✓ Valid for 2027O.R. procedure

Code last changed in FY2018 (effective October 1, 2017). Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About 00WE0YZ

00WE0YZ is the ICD-10-PCS code for a revision procedure on the cranial nerve using an open approach with other 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.

In plain terms, this corresponds to other incision of cranial and peripheral nerves, the ICD-9-CM procedure title it maps to (04.04).

For a different body part, codes include 00W00YZ (brain), 00W60YZ (cerebral ventricle), 00WU0YZ (spinal canal) and 00WV0YZ (spinal cord).

The same procedure with a different approach is coded 00WE3YZ (percutaneous) and 00WE4YZ (percutaneous endoscopic).

With a different device, use 00WE00Z (drainage device), 00WE02Z (monitoring device), 00WE03Z (infusion device), 00WE07Z (autologous tissue substitute) and 00WE0MZ (neurostimulator lead).

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 was added in FY2018, effective October 1, 2017.

What each character means

1. Section
0Medical and Surgical
2. Body System
0Central Nervous System and Cranial Nerves
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
ECranial Nerve
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
YOther Device

Includes: Alfapump(R) system

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 →
  • 04.04Other incision of cranial and peripheral nervesapproximate

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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 00WE0YZ

Is 00WE0YZ a valid ICD-10-PCS code for 2027?

Yes. 00WE0YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 00WE0YZ an O.R. procedure?

Yes. 00WE0YZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 00WE0YZ group to?

Depending on the principal diagnosis, 00WE0YZ can group to MS-DRG 040, MS-DRG 041 and MS-DRG 042.

What is the ICD-9 procedure code for 00WE0YZ?

The CMS GEMs map 00WE0YZ to ICD-9-CM 04.04 (Other incision of cranial and peripheral nerves).