Congenital abnormality of atrial septum	Congenital absence of heart structure
\|	\|

Cor triloculare biventriculare (disorder)
	Common atrium
	Cor triloculare biventriculare Congenital absence of atrial septum
	cor triloculare biventriculare

Id	253276007
Status	Defined

Associated morphology	Absence
Finding site	Interatrial septum structure
Occurrence	Congenital
Pathological process	Pathological developmental process

PALGA thesaurus simple reference set for pathology

DHD Diagnosis thesaurus reference set

ICD-10 complex map reference set

Target	Q21.1
Rule	TRUE
Advice	ALWAYS Q21.1
Correlation	SNOMED CT source code to target map code correlation not specified

|

Common atrioventricular canal1

Common atrium with common atrioventricular junction

Common atrium with separate arterioventricular junctions