Tetralogy of Fallot

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

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.

sections/codes in this section (LA88.2-LA88.2)

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

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