| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Congenital absence of radius | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of pubis | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of basioccipital bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of testis | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of fifth metatarsal | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of calcaneus | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of carpal bone | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of humerus | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of vulva | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of centrum of cervical vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of centrum of sacral vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of multiple metatarsal bones | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of cervical vertebra | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of parietal bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of foot | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of tarsals and metatarsals | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of tarsals and metatarsals | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of diaphragm | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of presphenoid bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of ossicles of ear | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of ilium | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Amyelia | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Oligohydramnios sequence | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Oligohydramnios sequence | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of interparietal bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of arch of lumbar vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of fourth and fifth metatarsals | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Agenesis of fourth and fifth metatarsals | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of lumbar vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of metacarpal bone | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of metatarsal bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of vagina | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of liver | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of thymus | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of carpals and metacarpals | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Agenesis of carpals and metacarpals | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of nipple | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of vertebra | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of thoracic vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of nasal bone | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of lobe of liver | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Acrocallosal syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of femur | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Acheiropodia | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Acheiropodia | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 4 | 
| Acheiropodia | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Acheiropodia | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 3 | 
| Agenesis of multiple tarsal bones | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital agenesis of brainstem nuclei | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Vici syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of basisphenoid bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Permanent neonatal diabetes mellitus with cerebellar agenesis syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| X-linked cerebral, cerebellar, coloboma syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of clitoris | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Bilateral congenital absence of feet | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Bilateral congenital absence of feet | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of both testes | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of both testes | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of eyelash | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of corpus callosum and abnormal genitalia syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Pulmonary valve agenesis, tetralogy of Fallot, absence of ductus arteriosus syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of gallbladder | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of frontal bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of larynx, trachea and bronchus | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of larynx, trachea and bronchus | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 3 | 
| Agenesis of larynx, trachea and bronchus | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Aniridia, renal agenesis, psychomotor retardation syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of tarsal bone | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Microcephaly, polymicrogyria, corpus callosum agenesis syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of hyoid bone | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Isolated arhinencephaly | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Isolated arhinencephaly | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of ischium | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Communicating hydrocephalus co-occurrent and due to congenital agenesis of arachnoid villi | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of centrum of lumbar vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| WNT4 Müllerian aplasia and ovarian dysfunction | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of parathyroid gland | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of cerebellum and hydrocephalus syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Agenesis of corpus callosum, intellectual disability, coloboma, micrognathia syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of corpus callosum with lipoma | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| X-linked intellectual disability with corpus callosum agenesis and spastic quadriparesis syndrome | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of punctum lacrimale | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of arch of sacral vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of internal carotid artery | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Infantile osteopetrosis with neuroaxonal dysplasia syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of squamosal bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| X-linked lissencephaly with agenesis of corpus callosum and genital anomaly syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital absence of centrum of thoracic vertebra | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of trachea | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of right kidney co-occurrent with hypoplasia of left kidney | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of right kidney co-occurrent with congenital dysplasia of left kidney | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of tympanic anulus | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of uterus | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of left kidney co-occurrent with congenital dysplasia of right kidney | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of zygomatic bone | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of intestinal tract | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Complete ablepharon | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Mullerian aplasia | Associated morphology | False | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Tetramelic monodactyly | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital absence of eustachian tube | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 1 | 
| Duane-radial ray syndrome | Associated morphology | True | Agenesis | Inferred relationship | Existential restriction modifier | 2 |