Congenital abnormality of cardiac connection	Congenital atrial septal defect	Disorder of embryonic structure
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Ostium primum defect (disorder)
	Ostium primum defect
	Atrial septum primum defect Persistent ostium primum
	ostiumprimumdefect
	persisterend ostium primum atriumseptumdefect I

Id	17718000
Status	Defined

Associated morphology	Congenital septal defect
Finding site	Structure of ostium primum
Occurrence	Congenital
Pathological process	Pathological developmental process

DHD Diagnosis thesaurus reference set

ICD-10 complex map reference set

Target	Q21.2
Rule	TRUE
Advice	ALWAYS Q21.2
Correlation	SNOMED CT source code to target map code correlation not specified