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Inpatient Procedure Code

02N40ZZ ICD-10-PCS Code: Release Coronary Vein, Open Approach

Axis Breakdown

Every ICD-10-PCS code is exactly seven characters, one per axis. Each character's meaning is defined by its position in the code.

PositionValueMeaning
1
Section0

Medical and Surgical

2
Body System2

Heart and Great Vessels

3
Root OperationN

Release

Freeing a body part from an abnormal physical constraint by cutting or by the use of force

4
Body Part4

Coronary Vein

5
Approach0

Open

6
DeviceZ

No Device

7
QualifierZ

No Qualifier

MS-DRG Grouper Relationships (FY2026)

Potential MS-DRG participation — not a DRG assignment.

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 6 MS-DRGs:

From the CMS MS-DRG Definitions Manual, Appendix E. Actual DRG assignment depends on the complete claim.

Related Codes

Same operation — other Body Part

Same table and root operation, differing only in the body part character.

02N00ZZ — Release Coronary Artery, One Artery, Open Approach, 02N10ZZ — Release Coronary Artery, Two Arteries, Open Approach, 02N20ZZ — Release Coronary Artery, Three Arteries, Open Approach, 02N30ZZ — Release Coronary Artery, Four or More Arteries, Open Approach, 02N50ZZ — Release Atrial Septum, Open Approach, 02N60ZZ — Release Right Atrium, Open Approach, 02N70ZZ — Release Left Atrium, Open Approach, 02N80ZZ — Release Conduction Mechanism, Open Approach, +18 more

Same operation — other Approach

Same table and root operation, differing only in the approach character.

02N43ZZ — Release Coronary Vein, Percutaneous Approach, 02N44ZZ — Release Coronary Vein, Percutaneous Endoscopic Approach

Same procedure category (CCSR), other tables

AHRQ's Clinical Classifications Software Refined groups these ICD-10-PCS procedures with this one under Vessel repair and replacement (Cardiovascular Procedures); listed here are the members in other PCS tables. Source: Clinical Classifications Software Refined (CCSR), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, November 2025.

+2094 more

Contextual Map

Every relationship of 02N40ZZ in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Run 02N40ZZ with these 5 related codes in Claim Check

PCS table

MS-DRG participation

Clinical classification (CCSR)

MDC crossing · diagnoses (8238)

  • MDC 05 — Diseases and Disorders of the Circulatory System[MDC crossing]: “Diseases and Disorders of the Circulatory System — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
  • MDC 21 — Injuries, Poisonings and Toxic Effects of Drugs[MDC crossing]: “Injuries, Poisonings and Toxic Effects of Drugs — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”— CMS MS-DRG Definitions Manual · FY2026
  • A36.81 — Diphtheritic cardiomyopathy[Same-MDC diagnosis]: “Diphtheritic cardiomyopathy — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A39.50 — Meningococcal carditis, unspecified[Same-MDC diagnosis]: “Meningococcal carditis, unspecified — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A39.51 — Meningococcal endocarditis[Same-MDC diagnosis]: “Meningococcal endocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A39.52 — Meningococcal myocarditis[Same-MDC diagnosis]: “Meningococcal myocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • A39.53 — Meningococcal pericarditis[Same-MDC diagnosis]: “Meningococcal pericarditis — grouped in MDC 05, the diagnosis side of this code's crossing.”— CMS MS-DRG Definitions Manual (Appendix B) · FY2026
  • and 8233 more

Nearest codes

Change history

No changes recorded for this code. This ledger tracks additions, deletions and description changes from FY2026 (April) onward. Note changes are not tracked.

Read from: CMS ICD-10-PCS code tables, index and definitions — FY2026 (April); CMS MS-DRG Definitions Manual (incl. Appendix B diagnosis index, Appendix C CC/MCC list, Appendix E procedure index) and IPPS Final Rule tables — v43; AHRQ HCUP Clinical Classifications Software Refined for ICD-10-PCS Procedures (hcup-us.ahrq.gov/toolssoftware/ccsr/PRCCSR_v2026-1.zip) — v2026.1. All data sources · How to read the labels