|  Q27 |  | Other congenital malformations of peripheral vascular system   | 
	
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		| Excludes2 | anomalies of cerebral and precerebral vessels (Q28.0-Q28.3) anomalies of coronary vessels (Q24.5)
 anomalies of pulmonary artery (Q25.5-Q25.7)
 congenital retinal aneurysm (Q14.1)
 hemangioma and lymphangioma (D18.-)
 
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		|  Q27.0 |  | Congenital absence and hypoplasia of umbilical artery |  
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		|  Q27.1 |  | Congenital renal artery stenosis |  | 
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		|  Q27.2 |  | Other congenital malformations of renal artery |  
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| Congenital malformation of renal artery NOS |  | Multiple renal arteries |  |  | 
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		|  Q27.3 |  | Arteriovenous malformation (peripheral) |  
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| Arteriovenous aneurysm |  
		| Excludes1 | acquired arteriovenous aneurysm (I77.0) 
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		| Excludes2 | arteriovenous malformation of cerebral vessels (Q28.2) arteriovenous malformation of precerebral vessels (Q28.0)
 
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		|  Q27.30 |  | Arteriovenous malformation, site unspecified |  |  |  |  | 
	
		|  Q27.31 |  | Arteriovenous malformation of vessel of upper limb |  |  |  |  | 
	
		|  Q27.32 |  | Arteriovenous malformation of vessel of lower limb |  |  |  |  | 
	
		|  Q27.33 |  | Arteriovenous malformation of digestive system vessel |  |  |  |  | 
	
		|  Q27.34 |  | Arteriovenous malformation of renal vessel |  |  |  |  | 
	
		|  Q27.39 |  | Arteriovenous malformation, other site |  |  | 
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		|  Q27.4 |  | Congenital phlebectasia |  | 
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		|  Q27.8 |  | Other specified congenital malformations of peripheral vascular system |  
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| Absence of peripheral vascular system |  | Atresia of peripheral vascular system |  | Congenital aneurysm (peripheral) |  | Congenital stricture, artery |  | Congenital varix |  
		| Excludes1 | arteriovenous malformation (Q27.3-) 
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		|  Q27.9 |  | Congenital malformation of peripheral vascular system, unspecified |  
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| Anomaly of artery or vein NOS |  |  |