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ICD-10-PCS 2027 procedure code

0WWKX7ZRevision of Autologous Tissue Substitute in Upper Back, External Approach

✓ Valid for 2027

Short description: Revision of Autol Sub in Up Back, 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 0WWKX7Z

0WWKX7Z is the ICD-10-PCS code for a revision procedure on the upper back 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 0WW0X7Z (head), 0WW2X7Z (face), 0WW4X7Z (upper jaw), 0WW5X7Z (lower jaw), 0WW6X7Z (neck), 0WW8X7Z (chest wall) and 5 more.

The same procedure with a different approach is coded 0WWK07Z (open), 0WWK37Z (percutaneous) and 0WWK47Z (percutaneous endoscopic).

With a different device, use 0WWKX0Z (drainage device), 0WWKX1Z (radioactive element), 0WWKX3Z (infusion device), 0WWKXJZ (synthetic substitute), 0WWKXKZ (nonautologous tissue substitute) and 0WWKXYZ (other 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
WAnatomical Regions, General
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
KUpper Back
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 0WWKX7Z

Is 0WWKX7Z a valid ICD-10-PCS code for 2027?

Yes. 0WWKX7Z is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for 0WWKX7Z?

The CMS GEMs map 0WWKX7Z to ICD-9-CM 99.99 (Other miscellaneous procedures).