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ICD-10-PCS 2027 procedure code

02WA4MZRevision of Cardiac Lead in Heart, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Revision of Cardiac Lead in Heart, 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 02WA4MZ

02WA4MZ is the ICD-10-PCS code for a revision procedure on the heart using a percutaneous endoscopic approach with cardiac lead. 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 revision of lead [electrode], the ICD-9-CM procedure title it maps to (37.75).

The same procedure with a different approach is coded 02WA0MZ (open), 02WA3MZ (percutaneous) and 02WAXMZ (external).

With a different device, use 02WA42Z (monitoring device), 02WA43Z (infusion device), 02WA47Z (autologous tissue substitute), 02WA48Z (zooplastic tissue), 02WA4CZ (extraluminal device), 02WA4DZ (intraluminal device) and 6 more.

It is an operating-room procedure in the MS-DRG logic for DRG 040 (Peripheral, Cranial Nerve and Other Nervous System Procedures with MCC), DRG 041 (Peripheral, Cranial Nerve and Other Nervous System Procedures with CC or Peripheral Neurostimulator), DRG 042 (Peripheral, Cranial Nerve and Other Nervous System Procedures without CC/MCC), DRG 210 (Cardiac Pacemaker Revision or Device Replacement with MCC), DRG 211 (Cardiac Pacemaker Revision or Device Replacement without MCC) and DRG 907 (Other O.R. Procedures for Injuries with MCC), under the surgical categories “Peripheral, Cranial Nerve and Other Nervous System Procedures”, “Cardiac Pacemaker Revision or Device Replacement”, “Other O.R. Procedures for Injuries” and 1 more.

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
2Heart and Great Vessels
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
AHeart
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
MCardiac Lead
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.

MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Pacemaker Revision or Device Replacement

ICD-9-CM equivalent

Converter →
  • 37.75Revision of lead [electrode]approximate

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 02WA4MZ

Is 02WA4MZ a valid ICD-10-PCS code for 2027?

Yes. 02WA4MZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02WA4MZ an O.R. procedure?

Yes. 02WA4MZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 02WA4MZ group to?

Depending on the principal diagnosis, 02WA4MZ can group to MS-DRG 040, MS-DRG 041, MS-DRG 042, MS-DRG 210, MS-DRG 211 and MS-DRG 907.

What is the ICD-9 procedure code for 02WA4MZ?

The CMS GEMs map 02WA4MZ to ICD-9-CM 37.75 (Revision of lead [electrode]).