| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Structure of distal ulnar epiphysis | Is a | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Entire distal epiphysis of ulna | Is a | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Structure of head of ulna | Is a | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Structure of styloid process of ulna | Is a | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Distal radioulnar synostosis | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of distal end of ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed traumatic dislocation of distal end of ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of lower end of radius AND ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Arthroplasty of distal ulna with prosthetic replacement | Procedure site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Madelung's deformity | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of distal end of ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of distal end of ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open dislocation of distal end of ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of lower end of radius AND ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Excision of distal ulna | Procedure site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture radius and ulna, distal | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of forearm, lower end, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Closed fracture distal ulna, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of forearm, lower end, NOS | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture distal ulna - other | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of distal end of radius and ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Darrach's procedure | Procedure site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of forearm, lower end, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of forearm, lower end, NOS | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of ulna, lower epiphysis | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Excision of distal ulna | Procedure site - Direct | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Darrach's procedure | Procedure site - Direct | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Madelung's deformity | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of distal end of ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of distal end of ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of ulna, lower epiphysis | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture of distal end of ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open dislocation of distal end of ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Excision of distal ulna | Procedure site - Direct | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Darrach's procedure | Procedure site - Direct | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Distal radioulnar synostosis | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture distal ulna - other | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture distal ulna, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture distal ulna, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Pathological fracture of distal ulna | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Pathological fracture of distal ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Pathological fracture of distal radius and distal ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Structure of epiphyseal plate of distal ulna | Is a | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Bone structure of distal left ulna | Is a | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Bone structure of distal right ulna | Is a | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Entire bone of distal ulna | Is a | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier |  | 
| Moore's fracture | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Open dislocation of distal end of ulna | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Madelung's deformity | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 3 | 
| Distal radioulnar synostosis | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Skillern's fracture | Finding site | True | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Closed fracture distal ulna, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of forearm, lower end, NOS | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 | 
| Open fracture distal ulna - other | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of forearm, lower end, unspecified | Finding site | False | Bone structure of distal ulna | Inferred relationship | Existential restriction modifier | 2 |