| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Dual chamber pacing cardioverter defibrillator pulse generator, device (physical object) | Is a | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some |  | 
| Insertion of dual chamber pulse generator and repositioning of cardioverter defibrillation pulse generator lead (procedure) | Direct device | False | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 2 | 
| Insertion of dual chamber cardiac pacemaker pulse generator (procedure) | Direct device | False | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 | 
| Replacement of dual chamber pulse generator (procedure) | Direct device | False | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 | 
| Insertion of dual chamber pulse generator and repositioning of cardioverter defibrillation pulse generator lead (procedure) | Direct device | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 2 | 
| Replacement of dual chamber pulse generator (procedure) | Direct device | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 | 
| Insertion of dual chamber cardiac pacemaker pulse generator (procedure) | Direct device | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 | 
| Replacement of temporary transvenous electrode of dual chamber pulse generator (procedure) | Indirect device | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 | 
| Insertion of temporary transvenous electrode of dual chamber cardiac pulse generator (procedure) | Indirect device | True | Dual chamber pulse generator, device (physical object) | Inferred relationship | Some | 1 |