| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Left kidney absent (finding) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Right kidney absent (finding) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Fetal sirenomelia | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| X-linked hypodontia (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| X-linked oligodontia (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Acquired absence of nose (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Acquired absence of cervix uteri (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Absence of liver (finding) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Developmental absence of tooth | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Anodontia | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Anodontia of permanent dentition | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Anodontia of primary dentition | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Taurodontia with absent teeth and sparse hair syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Partial congenital absence of teeth | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Familial hypodontia | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Hypodontia and nail dysgenesis | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Oligodontia and cancer predisposition syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Cleft palate with stapes fixation and oligodontia syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| X-linked oligodontia (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Traumatic enucleation of left eye (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Traumatic enucleation of right eye | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Mayer Rokitansky Küster Hauser syndrome type 1 | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Mayer Rokitansky Küster Hauser syndrome type 1 | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Mayer Rokitansky Küster Hauser syndrome type 1 | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class I | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Complete edentulism class II (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Complete edentulism class III (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Complete edentulism class IV | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Complete edentulism class I due to caries (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class II due to caries (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class III due to caries | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class IV due to caries (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class I due to periodontal disease (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class II due to periodontal disease | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class III due to periodontal disease (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class IV due to periodontal disease (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class I due to trauma (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class II due to trauma (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class III due to trauma | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Complete edentulism class IV due to trauma (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Agenesis of cervical vertebra | Associated morphology | False | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| MARCH syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Split-foot malformation, mesoaxial polydactyly syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Lethal hydranencephaly, diaphragmatic hernia syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Scarring alopecia due to lepromatous leprosy (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Trichodermodysplasia and dental alterations syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Ectodermal dysplasia trichoodontoonychial type (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Congenital absence of cervical vertebra | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital absence of right lower limb (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Dysraphism, cleft lip and palate, limb reduction defect syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Alopecia areata of eyebrow (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Acquired aphakia | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Mandibulofacial dysostosis with alopecia | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Aphakia due to trauma (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Alopecia areata of eyelash | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital absence of left lower leg and foot | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital absence of left lower leg and foot | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Congenital absence of right lower leg and foot (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Congenital absence of right lower leg and foot (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Acquired anophthalmic socket with orbital implant | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Diaphragmatic hernia, short bowel, asplenia syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Acne keloidalis | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Global developmental delay, alopecia, macrocephaly, facial dysmorphism, structural brain anomalies syndrome | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Single umbilical cord artery type II | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Single umbilical cord artery type I (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Single umbilical cord artery type III (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Single umbilical cord artery type IV (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Alopecia, psychomotor epilepsy, periodontal pyorrhea, intellectual disability syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 3 | 
| Pigmentation defects, palmoplantar keratoderma, skin carcinoma syndrome (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 4 | 
| Aprosencephaly cerebellar dysgenesis | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| NDE1-related microhydranencephaly | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Alopecia due to thyroid disorder | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Alopecia due to iron deficiency | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Scarring alopecia of scalp due to malignant neoplasm of skin (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Scarring alopecia due to and following radiotherapy (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Scarring alopecia due to infectious disease (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 2 | 
| Gravid uterus absent | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Uterus absent | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 1 | 
| Postmenopausal frontal fibrosing alopecia (disorder) | Associated morphology | True | Absence (morphologic abnormality) | Inferred relationship | Some | 4 |