| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Open fracture of forearm, upper end, NOS | Finding site | Bone structure of proximal ulna | false | Inferred relationship | Some | 1 |  | 
| Open fracture of forearm, upper end, NOS | Finding site | Bone structure of proximal ulna | false | Inferred relationship | Some | 1 |  | 
| Open fracture of forearm, upper end, NOS | Associated morphology | Fracture, open | false | Inferred relationship | Some | 1 |  | 
| Open fracture of forearm, upper end, NOS | Associated morphology | Fracture | false | Inferred relationship | Some | 4 |  | 
| Open fracture of forearm, upper end, NOS | Finding site | Bone structure of proximal radius | false | Inferred relationship | Some | 2 |  | 
| Open fracture of forearm, upper end, NOS | Finding site | Bone structure of proximal radius | false | Inferred relationship | Some | 1 |  | 
| Open fracture of forearm, upper end, NOS | Associated morphology | Fracture, open | false | Inferred relationship | Some | 1 |  | 
| Open fracture of forearm, upper end, NOS | Associated morphology | Fracture, open | false | Inferred relationship | Some | 2 |  | 
| Open fracture of forearm, upper end, NOS | Is a | Open fracture of upper end of radius AND ulna | false | Inferred relationship | Some |  |  |