| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Frontal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Occipital extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Parietal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Temporal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Sagittal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Subfrontal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Subtemporal extradural space | Is a | True | Extradural space of brain | Inferred relationship | Some |  | 
| Drainage of extradural space | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Evacuation of intracranial extradural haematoma | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Evacuation of intracranial extradural abscess (procedure) | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Epidural intracranial abscess | Finding site | True | Extradural space of brain | Inferred relationship | Some | 1 | 
| Epidural supratentorial pyogenic abscess | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Removal of intracranial extradural tumor | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| traumatiskt intrakraniellt extraduralhematom | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Removal of lesion from intracranial extradural space | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural infratentorial pyogenic abscess | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage in fetus or newborn | Finding site | False | Extradural space of brain | Inferred relationship | Some |  | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 1 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 2 | 
| öppen traumatisk extradural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår och ingen medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mindre än en timmes medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| extradural blödning efter skada med öppet intrakraniellt sår med 1-24 timmars medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust och återgång till tidigare medvetandenivå | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 4 | 
| traumatisk sluten epidural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Other specified drainage of extradural space | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Drainage of extradural space NOS | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| traumatisk sluten epidural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| Extradural hemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| Extradural hemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Removal of intracranial extradural tumor | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 5 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 5 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 5 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 5 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 5 | 
| öppen traumatisk extradural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår och ingen medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mindre än en timmes medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| extradural blödning efter skada med öppet intrakraniellt sår med 1-24 timmars medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust och återgång till tidigare medvetandenivå | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust utan återgång till tidigare medvetandenivå | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| traumatisk sluten epidural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Removal of intracranial extradural tumor | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår och ingen medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mindre än en timmes medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust utan återgång till tidigare medvetandenivå | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår med 1-24 timmars medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| öppen traumatisk extradural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 1 | 
| traumatisk sluten epidural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mer än 24 timmars medvetandeförlust och återgång till tidigare medvetandenivå | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| extradural blödning efter skada med öppet intrakraniellt sår och ingen medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| extradural blödning efter skada med öppet intrakraniellt sår med mindre än en timmes medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Extradural space of brain | 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 | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| Removal of intracranial extradural tumor | Procedure site | False | Extradural space of brain | Inferred relationship | Some | 1 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Extradural space of brain | Inferred relationship | Some | 3 | 
| extradural blödning efter skada med öppet intrakraniellt sår med 1-24 timmars medvetandeförlust | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| öppen traumatisk extradural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Extradural space of brain | Inferred relationship | Some | 4 | 
| 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 | Extradural space of brain | Inferred relationship | Some | 2 | 
| traumatisk sluten epidural blödning | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 | 
| Extradural hemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Extradural space of brain | Inferred relationship | Some | 2 |