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ICD-10-PCS 2027 procedure code

0WHK4YZInsertion of Other Device into Upper Back, Percutaneous Endoscopic Approach

✓ Valid for 2027Non-O.R. procedure

Short description: Insertion of Other Device into Up Back, Perc Endo 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 0WHK4YZ

0WHK4YZ is the ICD-10-PCS code for a insertion procedure on the upper back using a percutaneous endoscopic approach with other device. In ICD-10-PCS, insertion means putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part.

In plain terms, this corresponds to other incision of skin and subcutaneous tissue, the ICD-9-CM procedure title it maps to (86.09).

For a different body part, codes include 0WH04YZ (head), 0WH14YZ (cranial cavity), 0WH24YZ (face), 0WH34YZ (oral cavity and throat), 0WH44YZ (upper jaw), 0WH54YZ (lower jaw) and 16 more.

The same procedure with a different approach is coded 0WHK0YZ (open) and 0WHK3YZ (percutaneous).

With a different device, use 0WHK41Z (radioactive element) and 0WHK43Z (infusion device).

It is a non-O.R. procedure that is part of the MS-DRG logic for DRG 579 (Other Skin, Subcutaneous Tissue and Breast Procedures with MCC), DRG 580 (Other Skin, Subcutaneous Tissue and Breast Procedures with CC) and DRG 581 (Other Skin, Subcutaneous Tissue and Breast Procedures without CC/MCC), under the surgical category “Other Skin, Subcutaneous Tissue and Breast Procedures”.

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
HInsertion

Putting in a nonbiological appliance that monitors, assists, performs, or prevents a physiological function but does not physically take the place of a body part

Includes: Insertion of radioactive implant, insertion of central venous catheter

4. Body Part
KUpper Back
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

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

ICD-9-CM equivalent

Converter →
  • 86.09Other incision of skin and subcutaneous tissueapproximate

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 0WHK4YZ

Is 0WHK4YZ a valid ICD-10-PCS code for 2027?

Yes. 0WHK4YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WHK4YZ an O.R. procedure?

No. 0WHK4YZ is designated non-O.R. in MS-DRG v44.0.

What DRG does 0WHK4YZ group to?

Depending on the principal diagnosis, 0WHK4YZ can group to MS-DRG 579, MS-DRG 580 and MS-DRG 581.

What is the ICD-9 procedure code for 0WHK4YZ?

The CMS GEMs map 0WHK4YZ to ICD-9-CM 86.09 (Other incision of skin and subcutaneous tissue).