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ICD-10-PCS 2027 procedure code

0FW4X2ZRevision of Monitoring Device in Gallbladder, External Approach

✓ Valid for 2027

Short description: Revision of Monitor Dev in Gallbladder, 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 0FW4X2Z

0FW4X2Z is the ICD-10-PCS code for a revision procedure on the gallbladder using an external approach with monitoring 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 0FW0X2Z (liver), 0FWBX2Z (hepatobiliary duct), 0FWDX2Z (pancreatic duct) and 0FWGX2Z (pancreas).

The same procedure with a different approach is coded 0FW402Z (open), 0FW432Z (percutaneous) and 0FW442Z (percutaneous endoscopic).

With a different device, use 0FW4X0Z (drainage device), 0FW4X3Z (infusion device) and 0FW4XDZ (intraluminal device).

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
FHepatobiliary System and Pancreas
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
4Gallbladder
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
2Monitoring Device

Includes: Blood glucose monitoring system; Cardiac event recorder; Continuous Glucose Monitoring (CGM) device; Implantable glucose monitoring device; Loop recorder, implantable; Reveal (LINQ)(DX)(XT)

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 0FW4X2Z

Is 0FW4X2Z a valid ICD-10-PCS code for 2027?

Yes. 0FW4X2Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0FW4X2Z?

The CMS GEMs map 0FW4X2Z to ICD-9-CM 99.99 (Other miscellaneous procedures).