| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Ectromelia of upper limb | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Aplastic anemia co-occurrent with human immunodeficiency virus infection | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 6 | 
| Aplastic anemia due to infection | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Parvoviral aplastic crisis | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Aplastic anemia caused by antineoplastic agent | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Antibody mediated acquired pure red cell aplasia caused by erythropoiesis stimulating agent | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Tibial aplasia and ectrodactyly syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Congenital aplasia of lacrimal gland co-occurrent with congenital aplasia of salivary gland | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital aplasia of lacrimal gland co-occurrent with congenital aplasia of salivary gland | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Aplasia of fibula co-occurrent with complex brachydactyly | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Crane Heise syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Oculocerebral dysplasia syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Constitutional red cell hypoplasia | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Transient erythroblastopenia of childhood | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Acquired red cell aplasia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Constitutional red cell aplasia and hypoplasia | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Antibody mediated acquired pure red cell aplasia caused by erythropoiesis stimulating agent | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with ocular defect | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Joubert syndrome with renal defect | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Craniosynostosis with Dandy-Walker malformation and hydrocephalus syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 8 | 
| Hydrocephalus with cleft palate and joint contracture syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 9 | 
| X-linked Dandy-Walker malformation with intellectual disability, basal ganglia disease and seizure syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 8 | 
| WT limb blood syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Pure red cell aplasia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Acute pure red cell aplasia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital hypoplastic anemia | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Chronic acquired pure red cell aplasia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Pure red cell aplasia, acquired | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital pure red cell aplasia | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Congenital red cell hypoplasia | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Aplasia of fibula and ectrodactyly syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Joubert syndrome with congenital hepatic fibrosis | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Joubert syndrome with oculorenal defect | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Scalp, ear, nipple syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 6 | 
| Joubert syndrome with oculorenal defect | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Joubert syndrome with orofaciodigital defect | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 8 | 
| Macrocephaly, short stature, paraplegia syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 10 | 
| Aplasia of optic nerve | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Gomez Lopez Hernandez syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Revesz syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 6 | 
| Spinal muscular atrophy, Dandy-Walker malformation, cataract syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 6 | 
| Revesz syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 5 | 
| Congenital aplasia of lacrimal structure | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Aplasia of trochlea of humerus | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with Jeune asphyxiating thoracic dystrophy | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 6 | 
| Aphalangy, hemivertebra, urogenital, intestinal dysgenesis syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Isolated hereditary congenital facial paralysis | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Dandy-Walker malformation with postaxial polydactyly syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 5 | 
| Facial dysmorphism, macrocephaly, myopia, Dandy-Walker malformation syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 9 | 
| Aplasia of patella | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Aplasia of auditory canal | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Adult pure red cell aplasia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Estren-Dameshek anemia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Constitutional aplastic anemia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Constitutional aplastic anemia with malformation | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Fanconi's anemia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Parvoviral aplastic crisis | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Digital extensor muscle aplasia with polyneuropathy | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Absent radius, anogenital anomalies syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Crane Heise syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Cervical hemivertebra | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with ocular defect | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital bilateral aplasia of vas deferens | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with congenital hepatic fibrosis | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Thymic aplasia or dysplasia with immunodeficiency | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Lumbar hemivertebra | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Cervical hemivertebra- balanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Cervical hemivertebra - unbalanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Oculocerebral dysplasia syndrome | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic hemivertebra- balanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic hemivertebra - unbalanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Complete congenital absence of teeth | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Lumbar hemivertebra - balanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Aplasia of fibula and ectrodactyly syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Joubert syndrome with Jeune asphyxiating thoracic dystrophy | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Lumbar hemivertebra - unbalanced | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Isolated hereditary congenital facial paralysis | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Congenital aplasia of lacrimal gland co-occurrent with congenital aplasia of salivary gland | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Thoracic hemivertebra | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with renal defect | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Joubert syndrome with orofaciodigital defect | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Aplasia of muscle | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Tibial aplasia and ectrodactyly syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Sacral hemivertebra | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Complete congenital absence of teeth | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Scalp, ear, nipple syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Gomez Lopez Hernandez syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 2 | 
| Robinow syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 3 | 
| Pancytopenia with developmental delay syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Lung agenesis with heart defect and thumb anomaly syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis of enamel | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Partial agenesis of pancreas | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Partial agenesis of pericardium | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Bilateral right-sidedness sequence | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Agenesis | Is a | True | Aplasia | Inferred relationship | Existential restriction modifier |  | 
| Acephalostomia | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Partial radial absence | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Craniofacial dysmorphism with coloboma of eye and corpus callosum agenesis syndrome | Associated morphology | True | Aplasia | Inferred relationship | Existential restriction modifier | 4 | 
| Ablepharon | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 1 | 
| Hydranencephaly | Associated morphology | False | Aplasia | Inferred relationship | Existential restriction modifier | 2 |