Skip to content
Dx

ICD-10-PCS 2027 procedure code

00W64YZRevision of Other Device in Cerebral Ventricle, Percutaneous Endoscopic Approach

✓ Valid for 2027

Short description: Revision of Other Device in Cereb Vent, Perc Endo Approach

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 00W64YZ

00W64YZ is the ICD-10-PCS code for a revision procedure on the cerebral ventricle using a percutaneous endoscopic 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 brain, the ICD-9-CM procedure title it maps to (01.39).

For a different body part, codes include 00W04YZ (brain), 00WE4YZ (cranial nerve), 00WU4YZ (spinal canal) and 00WV4YZ (spinal cord).

The same procedure with a different approach is coded 00W60YZ (open) and 00W63YZ (percutaneous).

With a different device, use 00W640Z (drainage device), 00W642Z (monitoring device), 00W643Z (infusion device), 00W64JZ (synthetic substitute) and 00W64MZ (neurostimulator lead).

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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
6Cerebral Ventricle

Includes: Aqueduct of Sylvius; Cerebral aqueduct (Sylvius); Choroid plexus; Ependyma; Foramen of Monro (intraventricular); Fourth ventricle; Interventricular foramen (Monro); Left lateral ventricle; Right lateral ventricle; Third ventricle

5. Approach
4Percutaneous Endoscopic

Entry, by puncture or minor incision, of instrumentation through the skin or mucous membrane and any other body layers necessary to reach and visualize the site of the procedure

6. Device
YOther Device

Includes: Alfapump(R) system

7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 01.39Other incision 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
  • FY2018 (effective 10/1/2017): Added
  • No changes since FY2018.

Common questions about 00W64YZ

Is 00W64YZ a valid ICD-10-PCS code for 2027?

Yes. 00W64YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 00W64YZ?

The CMS GEMs map 00W64YZ to ICD-9-CM 01.39 (Other incision of brain).