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ICD-10-PCS 2027 procedure code

02HN4MZInsertion of Cardiac Lead into Pericardium, Percutaneous Endoscopic Approach

✓ Valid for 2027Non-O.R. procedure

Short description: Insert of Cardiac Lead into Pericardium, 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 02HN4MZ

02HN4MZ is the ICD-10-PCS code for a insertion procedure on the pericardium using a percutaneous endoscopic approach with cardiac lead. 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 insertion or replacement of epicardial lead [electrode] into epicardium, the ICD-9-CM procedure title it maps to (37.74).

For a different body part, codes include 02H44MZ (coronary vein), 02H64MZ (right atrium), 02H74MZ (left atrium), 02HK4MZ (right ventricle) and 02HL4MZ (left ventricle).

The same procedure with a different approach is coded 02HN0MZ (open) and 02HN3MZ (percutaneous).

With a different device, use 02HN40Z (monitoring device, pressure sensor), 02HN42Z (monitoring device), 02HN4JZ (cardiac lead, pacemaker), 02HN4KZ (cardiac lead, defibrillator) and 02HN4YZ (other device).

It is a non-O.R. procedure that is part of the MS-DRG logic for DRG 210 (Cardiac Pacemaker Revision or Device Replacement with MCC) and DRG 211 (Cardiac Pacemaker Revision or Device Replacement without MCC), under the surgical category “Cardiac Pacemaker Revision or Device Replacement”.

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
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
NPericardium
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 →
  • 37.74Insertion or replacement of epicardial lead [electrode] into epicardiumapproximate

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 02HN4MZ

Is 02HN4MZ a valid ICD-10-PCS code for 2027?

Yes. 02HN4MZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02HN4MZ an O.R. procedure?

No. 02HN4MZ is designated non-O.R. in MS-DRG v44.0.

What DRG does 02HN4MZ group to?

Depending on the principal diagnosis, 02HN4MZ can group to MS-DRG 210 and MS-DRG 211.

What is the ICD-9 procedure code for 02HN4MZ?

The CMS GEMs map 02HN4MZ to ICD-9-CM 37.74 (Insertion or replacement of epicardial lead [electrode] into epicardium).