| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Global developmental delay | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Development delay NOS | Is a | False | Developmental delay | Inferred relationship | Some |  | 
| Cognitive developmental delay (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Developmental delay in feeding (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Developmental delay in fine motor function (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Developmental delay in social skills | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Family history of neurological developmental delay | Associated finding | True | Developmental delay | Inferred relationship | Some | 1 | 
| Koolen De Vries syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Visceral neuropathy and brain anomaly with facial dysmorphism and developmental delay syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Cardiocranial syndrome Pfeiffer type (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Bohring Opitz syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Frank-Ter Haar syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Developmental delay, epilepsy, neonatal diabetes syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Obesity, colitis, hypothyroidism, cardiac hypertrophy, developmental delay syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Trigonocephaly, short stature, developmental delay syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Cyclin-dependent kinase-like 5 deficiency (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Spondyloepimetaphyseal dysplasia Genevieve type (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Congenital cataract, progressive muscular hypotonia, hearing loss, developmental delay syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Intellectual disability, craniofacial dysmorphism, cryptorchidism syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Congenital cataract, hearing loss, severe developmental delay syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Pancytopenia with developmental delay syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Lethal polymalformative syndrome Boissel type | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Xp22.13p22.2 duplication syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Facial dysmorphism, developmental delay, behavioral abnormalities syndrome due to 10p11.21p12.31 microdeletion (disorder) | Is a | False | Developmental delay | Inferred relationship | Some |  | 
| Delay in sexual development AND/OR puberty | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Phonological delay | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Speech delay | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Expressive language delay | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Receptive language delay (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Delayed pre-verbal development | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Clumsiness - motor delay | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Gross motor development delay (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| PPM-X syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Developmental delay in receptive-expressive language (disorder) | Is a | False | Developmental delay | Inferred relationship | Some |  | 
| Pervasive developmental disorder with cognitive developmental delay and complete impairment of functional language (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Severe achondroplasia, developmental delay, acanthosis nigricans syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Cutis laxa-corneal clouding-oligophrenia syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Proximal 16p11.2 microdeletion syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Distal 16p11.2 microdeletion syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Beta-D-mannosidosis | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Skeletal dysplasia, T-cell immunodeficiency, developmental delay syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Severe hypotonia, psychomotor developmental delay, strabismus, cardiac septal defect syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| WW domain containing adaptor with coiled-coil-related facial dysmorphism, developmental delay, behavioral abnormalities syndrome (disorder) | Is a | True | Developmental delay | Inferred relationship | Some |  | 
| Spastic paraplegia, severe developmental delay, epilepsy syndrome | Is a | True | Developmental delay | Inferred relationship | Some |  |