| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Congenital chorioretinal degeneration | Is a | False | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Aicardi's syndrome | Is a | False | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Visceral neuropathy and brain anomaly with facial dysmorphism and developmental delay syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Spinocerebellar ataxia dysmorphism syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Hypotonia, speech impairment, severe cognitive delay syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Pelizaeus-Merzbacher disease, connatal variant | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Craniosynostosis and intracranial calcification syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Severe X-linked intellectual disability Gustavson type | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Cerebellar ataxia, intellectual disability, optic atrophy, skin abnormalities syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Multiple sclerosis, ichthyosis, factor VIII deficiency syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Encephalopathy, intracerebral calcification, retinal degeneration syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Combined immunodeficiency with faciooculoskeletal anomalies syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Infantile cerebral and cerebellar atrophy with postnatal progressive microcephaly | Is a | False | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Peripheral demyelinating neuropathy, central dysmyelinating leukodystrophy, Waardenburg syndrome, Hirschsprung disease | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Keratosis follicularis, dwarfism, cerebral atrophy syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Progressive epilepsy-intellectual disability syndrome Finnish type | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Pelizaeus-Merzbacher disease null syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Pelizaeus-Merzbacher disease in female carrier | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  | 
| Proliferating cell nuclear antigen-related progressive neurodegenerative photosensitivity syndrome | Is a | True | Congenital degeneration of nervous system | Inferred relationship | Existential restriction modifier |  |