| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Hind brain contusion with open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Hind brain contusion with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Hind brain contusion with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Hind brain contusion with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Brain contusion without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with no loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with less than 1 hour loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion without mention of open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with no loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with no loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 1 hour loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 1 hour loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with 1-24 hours loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain contusion with open intracranial wound, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Mechanical complication of electrodes implanted in brain | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Anoxic brain damage complication | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Cerebral anoxia complication | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Infarction - precerebral | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Intracerebral hemorrhage in fetus or newborn | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Symptoms interfere with sleep | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Glial tumor of brain | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Mixed glial tumour of brain | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Neuronal and mixed neuronal - glial tumor of brain | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain stem contusion without open intracranial wound AND with prolonged loss of consciousness (more than 24 hours) AND return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Transient insomnia | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Transient hypersomnia | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Repetitive intrusions of sleep | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Cerebral laceration and contusion | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Electrocoagulation of brain | Procedure site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Semicoma | Finding site | True | Brain tissue structure | Inferred relationship | Some | 1 | 
| Post-cardiorespiratory arrest coma | Finding site | True | Brain tissue structure | Inferred relationship | Some | 2 | 
| Brain decortication | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Non-surgical biopsy of brain (procedure) | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Transient ischemic attacks | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Concussion injury of brain | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Cortex contusion without open intracranial wound AND with concussion | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Other specified major excision of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Major excision of brain tissue NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other specified excision of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Excision of lesion of brain tissue NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Evacuation of intracerebral hematoma NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Other specified drainage of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Drainage of lesion of brain tissue NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other biopsy of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Biopsy of lesion of temporal lobe of brain NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Biopsy of lesion of parietal lobe of brain NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Biopsy of lesion of occipital lobe of brain NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Biopsy of lesion of cerebellum NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Biopsy of lesion of brainstem NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other specified other biopsy of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other biopsy of lesion of brain tissue NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other specified neurostimulation of brain | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Neurostimulation of brain NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Aspiration of lesion of brain tissue NEC | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other specified diagnostic endoscopic examination of ventricle of brain | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Brain stem contusion with open intracranial wound AND prolonged loss of consciousness (more than 24 hours) AND return to pre-existing conscious level | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Open biopsy of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Other specified open biopsy of lesion of brain tissue | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Open biopsy of lesion of brain tissue NOS | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Stereotactic biopsy of brain | Procedure site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Cerebellar contusion without open intracranial wound AND with loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Cortex contusion without open intracranial wound AND with loss of consciousness | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Diabetes mellitus NOS with hyperosmolar coma | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Hypoglycemic coma NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Arteriosclerotic dementia NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| Alcohol amnestic syndrome NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Unspecified non-organic sleep disorder | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Non-organic sleep disorder NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Other vascular dementia | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| [X]Vascular dementia, unspecified | Finding site | False | Brain tissue structure | Inferred relationship | Some | 2 | 
| [X]Other nonorganic sleep disorders | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Nonorganic sleep disorder, unspecified | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Toxic encephalitis NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| Common migraine NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Migraine variant NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Other forms of migraine | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Other forms of migraine NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Migraine NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Cataplexy or narcolepsy NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Other migraine | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Other specified headache syndromes | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Other transient cerebral ischemic attacks and related syndromes | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Vascular headache, not elsewhere classified | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Drug-induced headache, not elsewhere classified | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Other transient cerebral ischemia | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Transient cerebral ischemia NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Cerebral infarction due to unspecified occlusion or stenosis of cerebral arteries | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Other cerebral infarction | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| [X]Cerebral infarction due to unspecified occlusion or stenosis of precerebral arteries | Finding site | False | Brain tissue structure | Inferred relationship | Some |  | 
| Kernicterus of newborn NOS | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 | 
| [X]Other specified kernicterus | Finding site | False | Brain tissue structure | Inferred relationship | Some | 1 |