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ICD-10-PCS 2027 procedure code

0WWL4YZRevision of Other Device in Lower Back, Percutaneous Endoscopic Approach

✓ Valid for 2027Non-O.R. procedure

Short description: Revision of Other Device in Lower 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 0WWL4YZ

0WWL4YZ is the ICD-10-PCS code for a revision procedure on the lower back using a percutaneous endoscopic approach with other 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 incision of skin and subcutaneous tissue, the ICD-9-CM procedure title it maps to (86.09).

For a different body part, codes include 0WW04YZ (head), 0WW14YZ (cranial cavity), 0WW24YZ (face), 0WW44YZ (upper jaw), 0WW54YZ (lower jaw), 0WW64YZ (neck) and 15 more.

The same procedure with a different approach is coded 0WWL0YZ (open), 0WWL3YZ (percutaneous) and 0WWLXYZ (external).

With a different device, use 0WWL40Z (drainage device), 0WWL41Z (radioactive element), 0WWL43Z (infusion device), 0WWL47Z (autologous tissue substitute), 0WWL4JZ (synthetic substitute) and 0WWL4KZ (nonautologous tissue substitute).

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
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
LLower 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 0WWL4YZ

Is 0WWL4YZ a valid ICD-10-PCS code for 2027?

Yes. 0WWL4YZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0WWL4YZ an O.R. procedure?

No. 0WWL4YZ is designated non-O.R. in MS-DRG v44.0.

What DRG does 0WWL4YZ group to?

Depending on the principal diagnosis, 0WWL4YZ can group to MS-DRG 579, MS-DRG 580 and MS-DRG 581.

What is the ICD-9 procedure code for 0WWL4YZ?

The CMS GEMs map 0WWL4YZ to ICD-9-CM 86.09 (Other incision of skin and subcutaneous tissue).