| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Extradural space of brain | Is a | False | Structure of epidural space | Inferred relationship | Some |  | 
| spinalt extraduralt utrymme | Is a | False | Structure of epidural space | Inferred relationship | Some |  | 
| Entire epidural space | Is a | True | Structure of epidural space | Inferred relationship | Some |  | 
| Cranial epidural space | Is a | True | Structure of epidural space | Inferred relationship | Some |  | 
| Structure of epidural space of spine | Is a | True | Structure of epidural space | Inferred relationship | Some |  | 
| Local anaesthetic lumbar epidural block | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Local anesthetic sacral epidural block | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural supratentorial pyogenic abscess | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural insertion neurostimulator electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| implantation av stimulator till epidural elektrod | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Adjustment to epidural electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Removal of epidural electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some |  | 
| Replacement of epidural electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some |  | 
| Repositioning of epidural electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural injection of anesthetic substance, diagnostic, caudal, continuous | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 6 | 
| Traumatic spinal extradural hematoma (disorder) | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Traumatic spinal extradural hematoma (disorder) | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Traumatic extradural hematoma | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Traumatic extradural hematoma | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| traumatiskt intrakraniellt extraduralhematom | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Local anaesthetic thoracic epidural block | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Local anesthetic cervical epidural block | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural infratentorial pyogenic abscess | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural anesthesia | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural venography | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural injection of anesthetic substance, diagnostic, lumbar, continuous | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Exploration of epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some |  | 
| Epidural injection of anesthetic substance, therapeutic, lumbar, continuous | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 4 | 
| Epidural abscess | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Spinal epidural abscess | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural injection of anesthetic substance, therapeutic, caudal, continuous | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 6 | 
| Epidural hemorrhage | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Extradural hemorrhage - nontraumatic | Finding site | False | Structure of epidural space | Inferred relationship | Some |  | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| öppen traumatisk extradural blödning | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår och ingen medvetandeförlust | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mindre än en timmes medvetandeförlust | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med 1-24 timmars medvetandeförlust | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust och återgång till tidigare medvetandenivå | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust utan återgång till tidigare medvetandenivå | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural hemorrhage | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural hemorrhage | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| traumatisk sluten epidural blödning | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Traumatic extradural haematoma without open intracranial wound | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Traumatic extradural haematoma without open intracranial wound | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Traumatic extradural hematoma with open intracranial wound | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Traumatic extradural hematoma with open intracranial wound | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural anesthetic NEC | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Nontraumatic extradural hemorrhage | Finding site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural injection of neurolytic solution, lumbar | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural injection of contrast substance, caudal | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Administration of epidural test dose | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Administration of epidural top-up | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural neurolysis | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 5 | 
| Cervical epidural neurolysis | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Thoracic epidural neurolysis | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Sacral epidural neurolysis | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural steroid injection | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Injection into cervical epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Injection into thoracic epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Injection into lumbar epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Injection into sacral epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural injection of contrast substance, lumbar | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Administration of drug or medicament via epidural route (procedure) | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Injection of spinal epidural space | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural lumbar injection of blood patch | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural injection of neurolytic solution, caudal | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 5 | 
| Epidural insertion neurostimulator electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 4 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| implantation av stimulator till epidural elektrod | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 4 | 
| Epidural insertion neurostimulator electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| implantation av stimulator till epidural elektrod | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Nontraumatic extradural haemorrhage | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Low dose epidural (procedure) | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| icke-traumatiskt extraduralt hematom | Finding site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| implantation av stimulator till epidural elektrod | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion neurostimulator electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| implantation av stimulator till epidural elektrod | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion neurostimulator electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion of trial electrode | Procedure site | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural neurostimulator electrode procedure (procedure) | Procedure site - Indirect (attribute) | False | Structure of epidural space | Inferred relationship | Some | 2 | 
| Epidural insertion neurostimulator electrode | Procedure site - Indirect (attribute) | False | Structure of epidural space | Inferred relationship | Some | 1 | 
| Epidural insertion neurostimulator electrode | Procedure site - Indirect (attribute) | False | Structure of epidural space | Inferred relationship | Some | 3 | 
| Removal of epidural electrode | Procedure site - Indirect (attribute) | True | Structure of epidural space | Inferred relationship | Some | 1 | 
| Replacement of epidural electrode | Procedure site - Indirect (attribute) | False | Structure of epidural space | Inferred relationship | Some | 1 |