Based on the size of the defect, VSD can be classified into small, medium, and large<unk>  septal defects.
Ventricular septal defect classification
Atrial septal defect classification
Patent ductus arteriosus classification
Endocardial cushion defect classification
Tricuspid stenosis classification
Dextro-transposition of the great arteries classification
Left ventricular aneurysm classification
Levo-transposition of the great arteries classification