Short answer · Medically reviewed summary · Last updated: 2026-05-08
Tetralogy of Fallot is most commonly referred to by its eponymous name, though it is occasionally classified as a form of Fallot's tetralogy or cyanotic congenital heart disease. While medical records consistently use the standard term, understanding these synonyms is essential when reviewing older clinical literature or international medical documentation. What are the official names and medical classifications for Tetralogy of Fallot? In modern clinical practice, Tetralogy of Fallot is the universally accepted terminology.
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Tetralogy of Fallot is most commonly referred to by its eponymous name, though it is occasionally classified as a form of Fallot's tetralogy or cyanotic congenital heart disease. While medical records consistently use the standard term, understanding these synonyms is essential when reviewing older clinical literature or international medical documentation.
In modern clinical practice, Tetralogy of Fallot is the universally accepted terminology. It is indexed in the International Classification of Diseases (ICD-10 as Q21.3) and the Orphanet database (ORPHA:334). The condition is named after Étienne-Louis Arthur Fallot, who provided the first accurate clinical description in 1888. While some older texts may refer to it as "Fallot's tetralogy," this is simply a variation of the possessive form and refers to the same congenital heart defect involving four specific structural abnormalities.
Historically, before the development of modern cardiac imaging and standardized nomenclature, this condition was sometimes described by its clinical presentation rather than its anatomical structure. You may encounter the following terms in archival medical records or legacy literature:
Modern medicine defines Tetralogy of Fallot by the presence of four distinct anatomical features: a ventricular septal defect (VSD), pulmonary stenosis, an overriding aorta, and right ventricular hypertrophy. Because these features consistently define the diagnosis, there is no ambiguity in current medical coding. At DiseaseMaps.org, our community of 362 members living with Tetralogy of Fallot uses this standardized name to ensure clarity when sharing experiences and navigating healthcare systems.
Medical disclaimer: This information is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician or qualified health provider.