The ICD-10 code range for ICD-10 Congenital malformations of the circulatory system Q20-Q28 is medical classification list by the World Health Organization (WHO).
ICD-10 Code range (Q00-Q99), Congenital malformations, deformations and chromosomal abnormalities, contains ICD-10 codes for Congenital malformations of the nervous system, Congenital malformations of eye, ear, face and neck, malformations of the circulatory system, malformations of the respiratory system, Cleft lip and cleft palate, Other congenital malformations of the digestive system.