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ICD-10-PCS 2027 procedure code

00WEX7ZRevision of Autologous Tissue Substitute in Cranial Nerve, External Approach

✓ Valid for 2027

Short description: Revision of Autol Sub in Cranial Nrv, Extern 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 00WEX7Z

00WEX7Z is the ICD-10-PCS code for a revision procedure on the cranial nerve using an external approach with autologous tissue substitute. 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 00W0X7Z (brain) and 00WVX7Z (spinal cord).

The same procedure with a different approach is coded 00WE07Z (open), 00WE37Z (percutaneous) and 00WE47Z (percutaneous endoscopic).

With a different device, use 00WEX0Z (drainage device), 00WEX2Z (monitoring device), 00WEX3Z (infusion device) and 00WEXMZ (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
ECranial Nerve
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
7Autologous Tissue Substitute

Includes: Autograft; Cultured epidermal cell autograft; Epicel(R) cultured epidermal autograft

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 00WEX7Z

Is 00WEX7Z a valid ICD-10-PCS code for 2027?

Yes. 00WEX7Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 00WEX7Z?

The CMS GEMs map 00WEX7Z to ICD-9-CM 99.99 (Other miscellaneous procedures).