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ICD-10-CM Diagnosis Codes →
section notes
17. Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) →
section notes
Q20-Q28 Congenital malformations of the circulatory system (Q20-Q28) →
section notes
Q21 Congenital malformations of cardiac septa →
section notes
Q21.1 Atrial septal defect →
section notes
Q21.10   Atrial septal defect, unspecified
Q21.11   Secundum atrial septal defect
Q21.12   Patent foramen ovale
Q21.13   Coronary sinus atrial septal defect
Q21.14   Superior sinus venosus atrial septal defect
Q21.15   Inferior sinus venosus atrial septal defect
Q21.16   Sinus venosus atrial septal defect, unspecified
Q21.19   Other specified atrial septal defect
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