| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Transverse deficiency lower limb - metatarsal level | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Transverse deficiency lower limb - hip level | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Complete ablepharon | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Duane-radial ray syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Ectrodactyly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Hemimelia of lower limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hemimelia of lower limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Transverse deficiency lower limb - through femur | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hemimelia of upper limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Transverse deficiency lower limb - through tibia/fibula | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Cleft hand with polydactyly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 6 | 
| hémimélie | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hemimyelia | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Incomplete congenital absence of thigh AND leg | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Cleft hand - first cleft | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Transverse deficiency of arm, forearm level | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Cleft hand with syndactyly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 6 | 
| Split foot | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Cleft hand - central | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Ectrodactyly-ectodermal dysplasia-clefting syndrome | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 6 | 
| Tongue absent | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Adams-Oliver syndrome | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Congenital hypodontia, multiple teeth, related to systemic disease | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Aglossia-adactyly syndrome | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Familial hypodontia | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hypodontia and nail dysgenesis | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital hypodontia, multiple teeth, unrelated to systemic disease | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Partial congenital absence of teeth | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Familial hypodontia | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Hypodontia and nail dysgenesis | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Congenital absent hemidiaphragm - bilateral | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Congenital absence of diaphragm | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital hypodontia, multiple teeth, related to systemic disease | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital hypodontia, multiple teeth, unrelated to systemic disease | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Partial absence of septum pellucidum (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Partial aphalangia of lower limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Tetra-amelia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Tetra-amelia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Tetra-amelia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Tetra-amelia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 5 | 
| Acephalostomia | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Congenital complete absence of lower limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital complete absence of limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital tibial deficiency type III | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Split foot | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Partial aphalangia of upper limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Aplasia cutis congenita | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita secondary to malformation syndrome (Type 9) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita due to teratogenic drug (Type 7) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita associated with fetus papyraceus (Type 5) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis in Johanson-Blizzard syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita due to underlying malformation (Type 4) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Adams-Oliver syndrome | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Congenital absence of skin on scalp with epidermal naevi | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita following intra-uterine infection (Type 8) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis in Trisomy 13 syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis in Chromosome 4 short-arm deletion syndrome (Wolf-Hirschhorn) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Aplasia cutis congenita in association with epidermolysis bullosa (Type 6) (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Oculocerebrocutaneous syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hypoplasia of corpus callosum (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Mullerian aplasia | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| WNT4 Mullerian aplasia and ovarian dysfunction | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Partial agenesis of corpus callosum | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Atrioventricular septal defect - isolated atrial component | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 5 | 
| Complete aphalangia of lower limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital partial absence of alimentary tract | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Cor triloculare biventriculare (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Partial ablepharon | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Common atrioventricular canal | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 5 | 
| Transverse deficiency of upper limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Partial aphalangia of upper limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Known OR suspected fetal anencephaly affecting obstetrical care | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Congenital absence of liver and/or gallbladder (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Transverse deficiency of arm, upper arm level - short | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Transverse deficiency of arm, upper arm level - long | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Absent right superior vena cava | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Absent bridging vein | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Holoanencephaly (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Poland anomaly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 6 | 
| Anencephalus | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Anencephalus and similar anomalies | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Incomplete anencephaly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Congenital absence of rectum with fistula (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| hemicentrisch centrum van sacrale wervel | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Hemimelia of upper limb | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Chromosome 11p13 deletion syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 5 | 
| Deafness and oligodontia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Tibial aplasia and ectrodactyly syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Microcephaly, microphthalmia, ectrodactyly of lower limbs and prognathism syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 7 | 
| Congenital absence of half of thyroid (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Phocomelia, ectrodactyly, deafness and sinus arrhythmia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Phocomelia Schinzel type (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Acrocallosal syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Phocomelia Schinzel type (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Cerebellum agenesis with hydrocephaly | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Bifid femur co-occurrent with monodactylous ectrodactyly (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Microcornea with glaucoma and absent frontal sinus syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Microcornea with glaucoma and absent frontal sinus syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| X-linked lissencephaly with abnormal genitalia syndrome | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Cleft palate with stapes fixation and oligodontia syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 7 | 
| Absence deformity of leg and congenital cataract syndrome (disorder) | Associated morphology | False | Congenital absence (morphologic abnormality) | Inferred relationship | Some | 3 |