Home > 2013 ICD-10-CM Diagnosis Codes > Congenital malformations, deformations and chromosomal abnormalities Q00-Q99 > Congenital malformations of the circulatory system Q20-Q28 > Congenital malformations of cardiac septa Q21-
2013 ICD-10-CM Diagnosis Code Q21.2
Atrioventricular septal defect
Q21.2 is a billable ICD-10-CM code that can be used to specify a diagnosis.
On October 1, 2014 ICD-10-CM will replace ICD-9-CM in the United States, therefore, Q21.2 and all ICD-10-CM diagnosis codes should only be used for training or planning purposes until then.
Applicable To
Common atrioventricular canal
Endocardial cushion defect
Ostium primum atrial septal defect (type I)
Mortality Data
Between 1999-2007 there were 502 deaths in the United States where ICD-10 Q21.2 was indicated as the underlying cause of death [source: cdc.gov]
ICD-10 Q21.2 as underlying cause of death data broken down by: gender, age, race, year
ICD-10-CM Q21.2 is part of Diagnostic Related Group(s) (MS-DRG v28.0):
306 Cardiac congenital & valvular disorders with mcc
307 Cardiac congenital & valvular disorders without mcc
2013 ICD-10-CM Diagnosis Code Q21.2 
]
, age
atrial septal(ostium secundum type) Q21.1
