ICDwise
Q00–Q99

Congenital Malformations, Deformations and Chromosomal Abnormalities

Down syndrome, congenital heart defects

1,086 codes · FY2026 · ICD-10-CM · Page 4 of 22

Q21.23 Complete atrioventricular septal defect Billable Q21.3 Tetralogy of Fallot Billable Q21.4 Aortopulmonary septal defect Billable Q21.8 Other congenital malformations of cardiac septa Billable Q21.9 Congenital malformation of cardiac septum, unspecified Billable Q22 Congenital malformations of pulmonary and tricuspid valves Non-billable Q22.0 Pulmonary valve atresia Billable Q22.1 Congenital pulmonary valve stenosis Billable Q22.2 Congenital pulmonary valve insufficiency Billable Q22.3 Other congenital malformations of pulmonary valve Billable Q22.4 Congenital tricuspid stenosis Billable Q22.5 Ebstein's anomaly Billable Q22.6 Hypoplastic right heart syndrome Billable Q22.8 Other congenital malformations of tricuspid valve Billable Q22.9 Congenital malformation of tricuspid valve, unspecified Billable Q23 Congenital malformations of aortic and mitral valves Non-billable Q23.0 Congenital stenosis of aortic valve Billable Q23.1 Congenital insufficiency of aortic valve Billable Q23.2 Congenital mitral stenosis Billable Q23.3 Congenital mitral insufficiency Billable Q23.4 Hypoplastic left heart syndrome Billable Q23.8 Other congenital malformations of aortic and mitral valves Non-billable Q23.81 Bicuspid aortic valve Billable Q23.82 Congenital mitral valve cleft leaflet Billable Q23.88 Other congenital malformations of aortic and mitral valves Billable Q23.9 Congenital malformation of aortic and mitral valves, unspecified Billable Q24 Other congenital malformations of heart Non-billable Q24.0 Dextrocardia Billable Q24.1 Levocardia Billable Q24.2 Cor triatriatum Billable Q24.3 Pulmonary infundibular stenosis Billable Q24.4 Congenital subaortic stenosis Billable Q24.5 Malformation of coronary vessels Billable Q24.6 Congenital heart block Billable Q24.8 Other specified congenital malformations of heart Billable Q24.9 Congenital malformation of heart, unspecified Billable Q25 Congenital malformations of great arteries Non-billable Q25.0 Patent ductus arteriosus Billable Q25.1 Coarctation of aorta Billable Q25.2 Atresia of aorta Non-billable Q25.21 Interruption of aortic arch Billable Q25.29 Other atresia of aorta Billable Q25.3 Supravalvular aortic stenosis Billable Q25.4 Other congenital malformations of aorta Non-billable Q25.40 Congenital malformation of aorta unspecified Billable Q25.41 Absence and aplasia of aorta Billable Q25.42 Hypoplasia of aorta Billable Q25.43 Congenital aneurysm of aorta Billable Q25.44 Congenital dilation of aorta Billable Q25.45 Double aortic arch Billable
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