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ICD-10-PCS 2027 procedure code

02H64MZInsertion of Cardiac Lead into Right Atrium, Percutaneous Endoscopic Approach

✓ Valid for 2027Non-O.R. procedure

Short description: Insertion of Cardiac Lead into R Atrium, 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 02H64MZ

02H64MZ is the ICD-10-PCS code for a insertion procedure on the right atrium 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 initial insertion of lead [electrode], not otherwise specified, the ICD-9-CM procedure title it maps to (37.70).

For a different body part, codes include 02H44MZ (coronary vein), 02H74MZ (left atrium), 02HK4MZ (right ventricle), 02HL4MZ (left ventricle) and 02HN4MZ (pericardium).

The same procedure with a different approach is coded 02H60MZ (open) and 02H63MZ (percutaneous).

With a different device, use 02H640Z (monitoring device, pressure sensor), 02H642Z (monitoring device), 02H643Z (infusion device), 02H64DZ (intraluminal device), 02H64JZ (cardiac lead, pacemaker), 02H64KZ (cardiac lead, defibrillator) and 2 more.

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), DRG 211 (Cardiac Pacemaker Revision or Device Replacement without MCC) and DRG 275 (Cardiac Defibrillator Implant with Cardiac Catheterization and MCC), under the surgical categories “Cardiac Pacemaker Revision or Device Replacement” and “Cardiac Defibrillator Implant with Cardiac Catheterization”.

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
6Atrium, Right

Includes: Atrium dextrum cordis; Right auricular appendix; Sinus venosus

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

MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization

MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization

MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization

MDC 05 · Diseases and Disorders of the Circulatory System · Cardiac Defibrillator Implant with Cardiac Catheterization

ICD-9-CM equivalent

Converter →
  • 37.70Initial insertion of lead [electrode], not otherwise specifiedapproximate

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 02H64MZ

Is 02H64MZ a valid ICD-10-PCS code for 2027?

Yes. 02H64MZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 02H64MZ an O.R. procedure?

No. 02H64MZ is designated non-O.R. in MS-DRG v44.0.

What DRG does 02H64MZ group to?

Depending on the principal diagnosis, 02H64MZ can group to MS-DRG 210, MS-DRG 211 and MS-DRG 275.

What is the ICD-9 procedure code for 02H64MZ?

The CMS GEMs map 02H64MZ to ICD-9-CM 37.70 (Initial insertion of lead [electrode], not otherwise specified).