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ICD-10-PCS 2027 procedure code

0QWY4MZRevision of Bone Growth Stimulator in Lower Bone, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Bone Stim in Low Bone, 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 0QWY4MZ

0QWY4MZ is the ICD-10-PCS code for a revision procedure on the lower bone using a percutaneous endoscopic approach with bone growth stimulator. 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 bone without division, other bones, the ICD-9-CM procedure title it maps to (77.19).

The same procedure with a different approach is coded 0QWY0MZ (open), 0QWY3MZ (percutaneous) and 0QWYXMZ (external).

With a different device, use 0QWY40Z (drainage device).

It is an operating-room procedure in the MS-DRG logic for DRG 495 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur with MCC), DRG 496 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur with CC) and DRG 497 (Local Excision and Removal of Internal Fixation Devices Except Hip and Femur without CC/MCC), under the surgical category “Local Excision and Removal of Internal Fixation Devices Except Hip and Femur”.

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
QLower Bones
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
YLower Bone
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
MBone Growth Stimulator
7. Qualifier
ZNo Qualifier

Other versions of this procedure

Different device

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 →
  • 77.19Other incision of bone without division, other bonesapproximate

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 0QWY4MZ

Is 0QWY4MZ a valid ICD-10-PCS code for 2027?

Yes. 0QWY4MZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 0QWY4MZ an O.R. procedure?

Yes. 0QWY4MZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 0QWY4MZ group to?

Depending on the principal diagnosis, 0QWY4MZ can group to MS-DRG 495, MS-DRG 496 and MS-DRG 497.

What is the ICD-9 procedure code for 0QWY4MZ?

The CMS GEMs map 0QWY4MZ to ICD-9-CM 77.19 (Other incision of bone without division, other bones).