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ICD-10-PCS/021/021V4ZU
Inpatient Procedure Code

021V4ZU

Bypass Superior Vena Cava to Pulmonary Vein Confluence, Percutaneous Endoscopic Approach

Bypass Sup Vena Cava to Pulm Vn Cnfl, Perc Endo 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 Operation1

Bypass

Altering the route of passage of the contents of a tubular body part

4
Body PartV

Superior Vena Cava

5
Approach4

Percutaneous Endoscopic

6
DeviceZ

No Device

7
QualifierU

Pulmonary Vein, Confluence

Potential MS-DRG Relationships (FY2026)

The MS-DRG grouper treats this as an operating room procedure. It appears in the surgical logic of 8 MS-DRGs:

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

Contextual Map

Every relationship of 021V4ZU 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.

PCS table

  • 021[PCS table]
  • [object Object] — Section: [object Object] [Section]: “[object Object]”
  • [object Object] — Body System: [object Object] [Body System]: “[object Object]”
  • [object Object] — Operation: [object Object] [Operation]: “[object Object]”

MS-DRG participation

  • DRG 228 — OTHER CARDIOTHORACIC PROCEDURES WITH MCC [MS-DRG]: “OTHER CARDIOTHORACIC PROCEDURES WITH MCC — Other Cardiothoracic Procedures (MDC 05)”
  • DRG 229 — OTHER CARDIOTHORACIC PROCEDURES WITHOUT MCC [MS-DRG]: “OTHER CARDIOTHORACIC PROCEDURES WITHOUT MCC — Other Cardiothoracic Procedures (MDC 05)”
  • DRG 907 — OTHER O.R. PROCEDURES FOR INJURIES WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH MCC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 908 — OTHER O.R. PROCEDURES FOR INJURIES WITH CC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITH CC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 909 — OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR INJURIES WITHOUT CC/MCC — Other O.R. Procedures for Injuries (MDC 21)”
  • DRG 957 — OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH MCC — Other O.R. Procedures for Multiple Significant Trauma (MDC 24)”
  • DRG 958 — OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH CC [MS-DRG]: “OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITH CC — Other O.R. Procedures for Multiple Significant Trauma (MDC 24)”
  • DRG 959 — OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC [MS-DRG]: “OTHER O.R. PROCEDURES FOR MULTIPLE SIGNIFICANT TRAUMA WITHOUT CC/MCC — Other O.R. Procedures for Multiple Significant Trauma (MDC 24)”

MDC crossing · diagnoses (16966)

  • 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.”
  • 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.”
  • A36.81 — Diphtheritic cardiomyopathy [Same-MDC diagnosis]: “Diphtheritic cardiomyopathy — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
  • A39.50 — Meningococcal carditis, unspecified [Same-MDC diagnosis]: “Meningococcal carditis, unspecified — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
  • A39.51 — Meningococcal endocarditis [Same-MDC diagnosis]: “Meningococcal endocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
  • A39.52 — Meningococcal myocarditis [Same-MDC diagnosis]: “Meningococcal myocarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
  • A39.53 — Meningococcal pericarditis [Same-MDC diagnosis]: “Meningococcal pericarditis — grouped in MDC 05, the diagnosis side of this code's crossing.” · check together
  • and 16961 more

Nearest codes

  • 02174ZU — Bypass Left Atrium to Pulmonary Vein Confluence, Percutaneous Endoscopic Approach [One axis away]
  • 021V0ZU — Bypass Superior Vena Cava to Pulmonary Vein Confluence, Open Approach [One axis away]
  • 021V48U — Bypass Superior Vena Cava to Pulmonary Vein Confluence with Zooplastic Tissue, Percutaneous Endoscopic Approach [One axis away]
  • 021V49U — Bypass Superior Vena Cava to Pulmonary Vein Confluence with Autologous Venous Tissue, Percutaneous Endoscopic Approach [One axis away]
  • 021V4AU — Bypass Superior Vena Cava to Pulmonary Vein Confluence with Autologous Arterial Tissue, Percutaneous Endoscopic Approach [One axis away]
  • 021V4JU — Bypass Superior Vena Cava to Pulmonary Vein Confluence with Synthetic Substitute, Percutaneous Endoscopic Approach [One axis away]
  • 021V4KU — Bypass Superior Vena Cava to Pulmonary Vein Confluence with Nonautologous Tissue Substitute, Percutaneous Endoscopic Approach [One axis away]
  • 021V4ZP — Bypass Superior Vena Cava to Pulmonary Trunk, Percutaneous Endoscopic Approach [One axis away]

Change history

No changes recorded for this code — unchanged since the FY2026 (April) baseline of the change ledger.