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ICD-10-PCS 2027 procedure code

00W0X0ZRevision of Drainage Device in Brain, External Approach

✓ Valid for 2027

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 00W0X0Z

00W0X0Z is the ICD-10-PCS code for a revision procedure on the brain using an external approach with drainage 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 miscellaneous procedures, the ICD-9-CM procedure title it maps to (99.99).

For a different body part, codes include 00W6X0Z (cerebral ventricle), 00WEX0Z (cranial nerve), 00WUX0Z (spinal canal) and 00WVX0Z (spinal cord).

The same procedure with a different approach is coded 00W000Z (open), 00W030Z (percutaneous) and 00W040Z (percutaneous endoscopic).

With a different device, use 00W0X2Z (monitoring device), 00W0X3Z (infusion device), 00W0X7Z (autologous tissue substitute), 00W0XJZ (synthetic substitute), 00W0XKZ (nonautologous tissue substitute) and 00W0XMZ (neurostimulator lead).

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

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
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
0Brain

Includes: Cerebrum; Corpus callosum; Encephalon

5. Approach
XExternal

Procedures performed directly on the skin or mucous membrane and procedures performed indirectly by the application of external force through the skin or mucous membrane

6. Device
0Drainage Device

Includes: Cystostomy tube; Foley catheter; Percutaneous nephrostomy catheter; Thoracostomy tube

7. Qualifier
ZNo Qualifier

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 99.99Other miscellaneous proceduresapproximate

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 00W0X0Z

Is 00W0X0Z a valid ICD-10-PCS code for 2027?

Yes. 00W0X0Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 00W0X0Z?

The CMS GEMs map 00W0X0Z to ICD-9-CM 99.99 (Other miscellaneous procedures).