 
| ICD-10-CM-2023 > Q00-Q99 > Q20-Q28 > Q28 | 
| Q20-Q28 | Congenital malformations of the circulatory system | |
| Q28 | Other congenital malformations of circulatory system | |
| Excl1.: | congenital aneurysm NOS (Q27.8) congenital coronary aneurysm (Q24.5) ruptured cerebral arteriovenous malformation (I60.8) ruptured malformation of precerebral vessels (I72.0) | |
| Excl2.: | congenital peripheral aneurysm (Q27.8) congenital pulmonary aneurysm (Q25.79) congenital retinal aneurysm (Q14.1) | |
| Q28.0 | Arteriovenous malformation of precerebral vessels | |
| Info: | Congenital arteriovenous precerebral aneurysm (nonruptured) | |
| Q28.1 | Other malformations of precerebral vessels | |
| Info: | Congenital malformation of precerebral vessels NOS Congenital precerebral aneurysm (nonruptured) | |
| Q28.2 | Arteriovenous malformation of cerebral vessels | |
| Info: | Arteriovenous malformation of brain NOS Congenital arteriovenous cerebral aneurysm (nonruptured) | |
| Q28.3 | Other malformations of cerebral vessels | |
| Info: | Congenital cerebral aneurysm (nonruptured) Congenital malformation of cerebral vessels NOS Developmental venous anomaly | |
| Q28.8 | Other specified congenital malformations of circulatory system | |
| Info: | Congenital aneurysm, specified site NEC Spinal vessel anomaly | |
| Q28.9 | Congenital malformation of circulatory system, unspecified | |
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