| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Contusion of thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Ectrodactyly | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Pachydermoperiostosis syndrome | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Oromandibular-limb hypogenesis spectrum | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Injury of digital blood vessels | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital absence of forepaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Benign neoplasm of blood vessel of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Benign neoplasm of phalanx of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Benign neoplasm of skin of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Carcinoma in situ of skin of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital abnormal shape of digit | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Lack of ossification of forepaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital malposition of digit | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital thickening of forepaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital thickening of hindpaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Incomplete ossification of forepaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Primary malignant neoplasm of blood vessel of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Primary malignant neoplasm of phalanx of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Primary malignant neoplasm of skin of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Metastatic malignant neoplasm to blood vessel of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Metastatic malignant neoplasm to phalanx of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Metastatic malignant neoplasm to skin of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of phalanx of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Neoplasm of uncertain behavior of skin of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Supernumerary forepaw phalanx | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Traumatic amputation of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Malignant neoplasm of phalanges of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Malignant neoplasm of connective and soft tissue of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Malignant neoplasm of connective and soft tissue of thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Malignant melanoma of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Malignant melanoma of thumb | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Malignant neoplasm of skin of thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Cellulitis and abscess of finger and toe | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Reactive arthropathy of proximal interphalangeal joint of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Traumatic arthropathy of proximal interphalangeal joint of finger (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Transient arthropathy of proximal interphalangeal joint of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Pathological dislocation of first carpometacarpal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Pathological dislocation of proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Ankylosis of proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Hemarthrosis of proximal interphalangeal joint of finger (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Synovial osteochondromatosis of proximal interphalangeal joint of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Acute osteomyelitis of phalanx of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Infection of phalanx of finger or thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Paget's disease-phalanx of finger or thumb | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Flexion deformity of fingers | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Closed traumatic dislocation, proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open traumatic dislocation, proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Closed traumatic subluxation, proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Closed traumatic subluxation, interphalangeal joint of thumb (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open traumatic subluxation, interphalangeal joint thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open traumatic subluxation, proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Closed fracture dislocation of proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open fracture dislocation digit | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Closed fracture subluxation of proximal interphalangeal joint (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open fracture subluxation of proximal interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Interphalangeal sprain | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Sprain, flexor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Sprain, extensor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Sprain, flexor digitorum superficialis tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Sprain, flexor digitorum profundus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete tear of ligament of thumb (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete tear of ligament of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open division thumb ligament | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open division finger ligament | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete division, flexor digitorum superficialis tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete division, flexor digitorum profundus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete division, flexor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Complete division, extensor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Partial division, flexor digitorum superficialis tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Partial division, flexor digitorum profundus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Partial division, flexor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Partial division, extensor pollicis longus tendon | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Abrasion or friction burn of finger, without mention of infection | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Insect bite, nonvenomous, of finger, without mention of infection | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Splinter of finger, without major open wound, infected | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Reattached finger(s) complication | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Fracture of one or more phalanges of hand | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Open wound of finger(s) or thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Splinter of finger, without major open wound or mention of infection | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Deformity of phalanx of finger or thumb | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Fracture of phalanx of finger AND/OR thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Adactyly | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Reattached thumb complication | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Foreign body - finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Foreign body in thumb (disorder) | Is a | True | Disorder of digit | Inferred relationship | Some |  | 
| Bruise fingers/thumb | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Hand-foot syndrome in sickle cell anemia (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Congenital bony fusion of phalanges (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Cellulitis with lymphangitis of digit | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Cellulitis - digit NOS | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Callosity between toes | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Rheumatoid arthritis of metacarpophalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Rheumatoid arthritis of distal interphalangeal joint of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Transient arthropathy of metacarpophalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Transient arthropathy of distal interphalangeal joint of finger | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Recurrent dislocation of interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Recurrent subluxation of interphalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Ankylosis of metacarpophalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Ankylosis of distal interphalangeal joint (disorder) | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Effusion of metacarpophalangeal joint | Is a | False | Disorder of digit | Inferred relationship | Some |  | 
| Haemarthrosis of MCP joint | Is a | False | Disorder of digit | Inferred relationship | Some |  |