Tetralogy of Fallot

**Definition:** A combination of congenital heart defects consisting of four key features including VENTRICULAR SEPTAL DEFECTS; PULMONARY STENOSIS; RIGHT VENTRICULAR HYPERTROPHY; and a dextro-positioned AORTA. In this condition, blood from both ventricles (oxygen-rich and oxygen-poor) is pumped into the body often causing CYANOSIS.

**Tree numbers:** - C14.240.400.849 - C14.280.400.849 - C16.131.240.400.849

**Synonyms:** - Fallot's Tetralogy - Tetralogy, Fallot's