Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2020. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Hemispheric cerebellar agenesis (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Hydranencephaly | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Hemispheric cerebral agenesis | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Isolated arhinencephaly (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Aplasia of corpus callosum | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Agenesis of left hemisphere of cerebellum (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Agenesis of right hemisphere of cerebellum (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Congenital absence of optic chiasma (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some | |
| Arhinencephaly (disorder) | Is a | True | Hemianencephaly | Inferred relationship | Some |
This concept is not in any reference sets