Congenital malformations of the circulatory system (Q20-Q28)
Q22: Congenital malformations of pulmonary and tricuspid valves
Q22.0: Pulmonary valve atresia
Q22.1: Congenital pulmonary valve stenosis
Q22.2: Congenital pulmonary valve insufficiency
Q22.3: Other congenital malformations of pulmonary valve
Q22.4: Congenital tricuspid stenosis
Q22.5: Ebstein's anomaly
Q22.6: Hypoplastic right heart syndrome
Q22.8: Other congenital malformations of tricuspid valve
Q22.9: Congenital malformation of tricuspid valve, unspecified

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