Table 1. Categories of congenital anomalies.

Category	Examples
Cardiovascular abnormalities	All cardiac structural abnormalities confirmed by echocardiogram
Gastrointestinal abnormalities	Esophageal atresia or tracheoesophageal fistula; anterior displacement of anus or ectopic anus; omphalocele
Limb abnormalities	Digit abnormalities, e.g., hypoplastic digits and polydactyly; skeletal abnormalities, e.g., absent radius
Periauricular abnormalities	Preauricular sinuses; preauricular tags
Sacral abnormalities	Sacral dimples; sacral polyps
Urogenital abnormalities (in males)	Undescended testes; chordee; hypospadias; epispadias