Q21.1 - Atrial septal defect


Q21.1 - Atrial septal defect
[Billable] [POA Exempt]


  • Coronary sinus defect
  • Patent or persistent foramen ovale
  • Patent or persistent ostium secundum defect (type II)
  • Patent or persistent sinus venosus defect

Code Tree

Q00-Q99 - Congenital malformations, deformations and chromosomal abnormalities
  • Q20-Q28 - Congenital malformations of the circulatory system
    • Q21 - Congenital malformations of cardiac septa
      • Q21.0 - Ventricular septal defect
      • Q21.1 - Atrial septal defect
      • Q21.2 - Atrioventricular septal defect
      • Q21.3 - Tetralogy of Fallot
      • Q21.4 - Aortopulmonary septal defect
      • Q21.8 - Other congenital malformations of cardiac septa
      • Q21.9 - Congenital malformation of cardiac septum, unspecified

Map to ⑨

Q21.1 converts to ICD-9-CM:
  • 745.5 - Ostium secundum type atrial septal defect
Q21.1 - Atrial septal defect is a sample topic from the ICD-10-CM.

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