ICD-10 Code: Q21.20 – Atrioventricular septal defect, unspecified as to partial or complete

ICD-10 code Q21.20 corresponds to Atrioventricular septal defect, unspecified as to partial or complete. This code is classified under the chapter Q21 Congenital malformations of cardiac septa, which is part of the Q20-Q28: Congenital malformations of the circulatory system category.

The parent chapter is Congenital malformations, deformations and chromosomal abnormalities.