LA8E.2

ICD-11 MMS 2026-01

Sinus venosus defect

Description

A congenital cardiovascular malformation in which there is a caval vein (vena cava) and/or pulmonary vein (or veins) that overrides the atrial septum or the septum secundum (superior interatrial fold) producing an interatrial or anomalous veno-atrial communication. Additional information: although the term sinus venosus atrial septal defect is commonly used, the lesion is more properly termed a sinus venosus communication because, while it functions as an interatrial communication, this lesion is not a defect of the atrial septum.

Index terms

  • Sinus venosus defect
  • Sinus venosus atrial septal defect
  • Sinus venosus communication

Exclusions from above levels

  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LA8E.0 – Patent oval foramen
  • LA8E.1 – Atrial septal defect within oval fossa
  • LA8E.3 – Interatrial communication through coronary sinus orifice
  • LA8E.Y – Other specified congenital anomaly of atrial septum
  • LA8E.Z – Congenital anomaly of atrial septum, unspecified

Foundation entity

Sinus venosus defect – http://id.who.int/icd/entity/1930019148

Part of: LA8E: Congenital anomaly of atrial septum › 20: Developmental anomalies