| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Extradural hemorrhage following injury with open intracranial wound AND brief loss of consciousness (less than one hour) | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Subarachnoid hemorrhage 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 | Existential restriction modifier | 2 | 
| Subarachnoid hemorrhage following injury with open intracranial wound AND loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage following injury with open intracranial wound | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage following injury with open intracranial wound AND no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage following injury with open intracranial wound AND concussion | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Subarachnoid hemorrhage following injury with open intracranial wound AND no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Extradural hemorrhage 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 | Existential restriction modifier | 1 | 
| Extradural hemorrhage following injury with open intracranial wound AND prolonged loss of consciousness (more than 24 hours) without return to pre-existing conscious level | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Subarachnoid hemorrhage following injury with open intracranial wound AND moderate loss of consciousness (1-24 hours) | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Subdural hemorrhage following injury with open intracranial wound AND moderate loss of consciousness (1-24 hours) | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 4 | 
| Intracranial hemorrhage 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 | Existential restriction modifier | 1 | 
| Biopsy of cranial artery | Procedure site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Biopsy of cranial artery | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory open craniotomy | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory craniotomy, supratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory craniotomy, infratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploration of cranium | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory open craniotomy | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Ultrasonography of cranial cavity | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial injury co-occurrent and due to closed skull fracture | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory craniotomy, supratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploration of cranium | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial injury co-occurrent and due to open skull fracture | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Exploratory craniotomy, infratentorial | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Ultrasonography of cranial cavity | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Stereotactic biopsy by aspiration of intracranial lesion | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Intracranial procedure using imaging guidance | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Magnetic resonance imaging of craniofacial structure | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Intracranial procedure using imaging guidance | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Brain contusion with open intracranial wound, with no loss of consciousness | Finding site | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Brain stem laceration with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Cerebellar laceration with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Brain stem laceration with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Cerebellar laceration with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Traumatic cerebral edema with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 4 | 
| Hind brain laceration with open intracranial wound, with no loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Brain injury with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Hind brain laceration with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Brain injury with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Cortex laceration with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Cerebellar contusion with open intracranial wound AND concussion | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Subdural hemorrhage with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Cortex laceration with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Brain injury with open intracranial wound AND loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Brain stem contusion with open intracranial wound AND loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Brain stem contusion with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Cerebellar contusion with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Contusion of hindbrain with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Cortex laceration with open intracranial wound AND loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 4 | 
| Cortex contusion with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Contusion of cerebrum with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Cortex contusion with open intracranial wound, with no loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Subarachnoid hemorrhage following injury with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 4 | 
| Intracranial injury with prolonged coma with open wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Traumatic subdural hematoma with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Traumatic extradural hematoma with open intracranial wound | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Cortex laceration with open intracranial wound, with no loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Brain stem laceration with open intracranial wound AND no loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 3 | 
| Hind brain laceration with open intracranial wound and loss of consciousness | Finding site | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Exploratory open craniotomy | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Exploratory craniotomy, infratentorial | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Exploratory craniotomy, supratentorial | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Ultrasound scan of cranial cavity (procedure) | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 1 | 
| Magnetic resonance imaging of craniofacial structure (procedure) | Procedure site - Direct | False | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 | 
| Magnetic resonance imaging of craniofacial structure with contrast (procedure) | Procedure site - Direct | True | Cranial cavity structure | Inferred relationship | Existential restriction modifier | 2 |