| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Exploratory open craniotomy | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Ultrasound of cranial cavity | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Intracranial injury co-occurrent and due to closed skull fracture | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Exploratory craniotomy, supratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Exploration of cranium | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Intracranial injury co-occurrent and due to open skull fracture | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Exploratory craniotomy, infratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Ultrasound of cranial cavity | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Intracranial procedure using imaging guidance | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| MRI of craniofacial structure | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Intracranial procedure using imaging guidance | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, unspecified state of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage 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 | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage 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 | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury without mention of open intracranial wound, with concussion, unspecified | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Open traumatic extradural haemorrhage | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, unspecified state of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with loss of consciousness of unspecified duration | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound, with concussion, unspecified | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Epidural supratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Epidural supratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Subdural supratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural infratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Cerebral pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Cerebral pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Brainstem pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Multiple intracranial pyogenic abscesses | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Multiple intracranial pyogenic abscesses | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Candidal brain abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Candidal brain abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Cerebral hydatid cyst | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural intracranial abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Tuberculous intracranial abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Tuberculous intracranial abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury without open intracranial wound AND with brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Subdural haemorrhage following injury without open intracranial wound AND with brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Traumatic intracranial extradural haematoma | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Traumatic intracranial subdural hematoma | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage due to traumatic injury | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Closed traumatic extradural haemorrhage | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Late effects of pyogenic intracranial abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Late effects of pyogenic intracranial abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Intracranial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Intracranial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Actinomycotic brain abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Intracranial non-pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Intracranial non-pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Cerebral cysticercosis | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Cerebral cysticercosis | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Intramedullary abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Intramedullary abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Amoebic brain abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury without open intracranial wound | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Extradural haemorrhage following injury with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Non-traumatic extradural intracranial haematoma | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound AND brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Middle meningeal haemorrhage following injury | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury without open intracranial wound AND with loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 1 | 
| Subdural haemorrhage following injury without open intracranial wound AND with loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Intracranial haemorrhage following injury with intracranial wound AND moderate loss of consciousness (1-24 hours) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury without open intracranial wound AND with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Extradural infratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural infratentorial pyogenic abscess | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Ruptured cerebral aneurysm | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Extradural haemorrhage following injury without open intracranial wound AND with brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 3 | 
| Extradural haemorrhage following injury without open intracranial wound AND with brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury without open intracranial wound AND with concussion | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 4 | 
| Subarachnoid haemorrhage following injury without open intracranial wound AND with concussion | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Extradural haemorrhage following injury with open intracranial wound AND no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound AND loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subarachnoid haemorrhage following injury with open intracranial wound | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 | 
| Subdural haemorrhage following injury with open intracranial wound AND prolonged loss of consciousness (more than 24 hours) AND return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Some | 2 |