Congenital malformations of the circulatory system (Q20-Q28)
Q28: Other congenital malformations of circulatory system

congenital aneurysm NOS (Q27.8)
congenital coronary aneurysm (Q24.5)
ruptured cerebral arteriovenous malformation (I60.8)
ruptured malformation of precerebral vessels (I72.0)

congenital peripheral aneurysm (Q27.8)
congenital pulmonary aneurysm (Q25.79)
congenital retinal aneurysm (Q14.1)
Q28.0: Arteriovenous malformation of precerebral vessels
Q28.1: Other malformations of precerebral vessels
Q28.2: Arteriovenous malformation of cerebral vessels
Q28.3: Other malformations of cerebral vessels
Q28.8: Other specified congenital malformations of circulatory system
Q28.9: Congenital malformation of circulatory system, unspecified

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