Q21.1 Atrial septal defect – ICD-10 Code, in Q20-Q28: Congenital malformations of the circulatory system
ICD-10-CM › XVII – Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders › Q20-Q28 – Congenital malformations of the circulatory system › Q21 – Congenital…