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ICD-10-PCS 2027 procedure code

025M4ZZDestruction of Ventricular Septum, Percutaneous Endoscopic Approach

✓ Valid for 2027O.R. procedure

Short description: Destruction of Ventricular Septum, 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 025M4ZZ

025M4ZZ is the ICD-10-PCS code for a destruction procedure on the ventricular septum using a percutaneous endoscopic approach. In ICD-10-PCS, destruction means physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent.

In plain terms, this corresponds to excision or destruction of other lesion or tissue of heart, thoracoscopic approach, the ICD-9-CM procedure title it maps to (37.37).

For a different body part, codes include 02544ZZ (coronary vein), 02554ZZ (atrial septum), 02564ZZ (right atrium), 02574ZZ (left atrium), 02584ZZ (conduction mechanism), 02594ZZ (chordae tendineae) and 16 more.

The same procedure with a different approach is coded 025M0ZZ (open) and 025M3ZZ (percutaneous).

It is an operating-room procedure in the MS-DRG logic for DRG 228 (Other Cardiothoracic Procedures with MCC) and DRG 229 (Other Cardiothoracic Procedures without MCC), under the surgical category “Other Cardiothoracic 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
2Heart and Great Vessels
3. Operation
5Destruction

Physical eradication of all or a portion of a body part by the direct use of energy, force, or a destructive agent

None of the body part is physically taken out

Includes: Fulguration of rectal polyp, cautery of skin lesion

4. Body Part
MVentricular Septum

Includes: Interventricular septum

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
ZNo Device
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 · Other Cardiothoracic Procedures

ICD-9-CM equivalent

Converter →
  • 37.37Excision or destruction of other lesion or tissue of heart, thoracoscopic approachapproximate

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 025M4ZZ

Is 025M4ZZ a valid ICD-10-PCS code for 2027?

Yes. 025M4ZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is 025M4ZZ an O.R. procedure?

Yes. 025M4ZZ is an O.R. procedure in MS-DRG v44.0.

What DRG does 025M4ZZ group to?

Depending on the principal diagnosis, 025M4ZZ can group to MS-DRG 228 and MS-DRG 229.

What is the ICD-9 procedure code for 025M4ZZ?

The CMS GEMs map 025M4ZZ to ICD-9-CM 37.37 (Excision or destruction of other lesion or tissue of heart, thoracoscopic approach).