LA88.2

ICD-11 MMS 2026-01

Tetralogy of Fallot

Description

A group of congenital cardiovascular malformations with biventricular atrioventricular alignments or connections characterised by anterosuperior deviation of the conal or outlet septum or its fibrous remnant, narrowing or atresia of the pulmonary outflow, a ventricular septal defect of the malalignment type, and biventricular origin of the aorta. Additional information: tetralogy of Fallot will always have a ventricular septal defect, narrowing or atresia of the pulmonary outflow, aortic override, and most often right ventricular hypertrophy.

Exclusions from above levels

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

Child codes

  • LA88.20 – Tetralogy of Fallot with absent pulmonary valve syndrome
  • LA88.21 – Tetralogy of Fallot with pulmonary atresia
  • LA88.22 – Tetralogy of Fallot with pulmonary atresia and systemic-to-pulmonary collateral artery
  • LA88.2Y – Other specified tetralogy of Fallot
  • LA88.2Z – Tetralogy of Fallot, unspecified

Sibling codes

  • LA88.0 – Congenital right ventricular outflow tract obstruction
  • LA88.1 – Double chambered right ventricle
  • LA88.3 – Congenital left ventricular outflow tract obstruction
  • LA88.4 – Ventricular septal defect
  • LA88.Y – Other specified congenital anomaly of a ventricle or the ventricular septum
  • LA88.Z – Congenital anomaly of a ventricle or the ventricular septum, unspecified

Foundation entity

Tetralogy of Fallot – http://id.who.int/icd/entity/90973426

Part of: LA88: Congenital anomaly of a ventricle or the ventricular septum › 20: Developmental anomalies