| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Open fracture thumb distal phalanx, mallet | Is a | Open fracture of distal phalanx of thumb (disorder) | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Bone structure of distal phalanx of thumb | false | Inferred relationship | Some | 1 |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Bone structure of distal phalanx of finger | false | Inferred relationship | Some | 2 |  | 
| Open fracture thumb distal phalanx, mallet | Associated morphology | Fracture, open | false | Inferred relationship | Some | 1 |  | 
| Open fracture thumb distal phalanx, mallet | Communication with wound | Open injury | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Associated morphology | Fracture | false | Inferred relationship | Some | 1 |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Bone structure of distal phalanx of thumb | true | Inferred relationship | Some | 1 |  | 
| Open fracture thumb distal phalanx, mallet | Associated morphology | Fracture, open | true | Inferred relationship | Some | 1 |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Rupture of extensor pollicis longus (disorder) | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Acquired deformity of joint of upper limb | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Arthropathy of joint of hand (disorder) | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Acquired deformity of the thumb | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Injury by causative force | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Structure of interphalangeal joint of thumb | true | Inferred relationship | Some | 2 |  | 
| Open fracture thumb distal phalanx, mallet | Associated morphology | Deformity | true | Inferred relationship | Some | 2 |  | 
| Open fracture thumb distal phalanx, mallet | Causative agent | Traumatic agent | true | Inferred relationship | Some | 2 |  | 
| Open fracture thumb distal phalanx, mallet | Associated morphology | Rupture | true | Inferred relationship | Some | 3 |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Finding of joint of thumb | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Occurrence | Period of life beginning after birth and ending before death (qualifier value) | true | Inferred relationship | Some | 2 |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Structure of extensor pollicis longus muscle tendon | false | Inferred relationship | Some | 3 |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Thumb joint deformity | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Injury of extensor tendon of hand (disorder) | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Open fracture of phalanx of thumb | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Traumatic rupture of tendon (disorder) | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Traumatic arthropathy of the hand | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Due to | Traumatic event (event) | true | Inferred relationship | Some | 4 |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Traumatic rupture of tendon of hand (disorder) | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Traumatic rupture of tendon of wrist region (disorder) | false | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Is a | Rupture of extensor tendon of thumb (disorder) | true | Inferred relationship | Some |  |  | 
| Open fracture thumb distal phalanx, mallet | Finding site | Structure of extensor tendon within thumb (body structure) | true | Inferred relationship | Some | 3 |  |