| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Entire calvaria | Is a | True | Structure of vault of skull | Inferred relationship | Existential restriction modifier |  | 
| Longitudinal fracture of temporal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Transverse fracture of temporal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Complex fracture of temporal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage co-occurrent and due to closed fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Intracranial hemorrhage co-occurrent and due to open fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Petrous bone fracture | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 3 | 
| Fracture of basilar portion of occipital bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of occipital condyle | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Fracture of clivus of occipital bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Fracture of occipital bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with cerebral laceration AND/OR contusion | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of frontal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Cerebral laceration AND/OR contusion co-occurrent and due to open fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with subarachnoid, subdural AND/OR extradural hemorrhage | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with subarachnoid, subdural AND/OR extradural hemorrhage | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of parietal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Fracture of temporal bone | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 2 | 
| Depressed fracture of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with no loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial injury co-occurrent and due to closed fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with no loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with no loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing level of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial injury co-occurrent and due to open fracture vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with no loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, state of consciousness unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, state of consciousness unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, state of consciousness unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, unspecified state of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of vault of skull NOS | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with subarachnoid, subdural AND/OR extradural hemorrhage | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Structure of coronal suture of skull | Is a | True | Structure of vault of skull | Inferred relationship | Existential restriction modifier |  | 
| Structure of lambdoid suture of skull | Is a | True | Structure of vault of skull | Inferred relationship | Existential restriction modifier |  | 
| Structure of sagittal suture of skull | Is a | True | Structure of vault of skull | Inferred relationship | Existential restriction modifier |  | 
| Skull vault X-ray | Procedure site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Skull vault X-ray | Procedure site - Direct | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Cerebral laceration AND/OR contusion co-occurrent and due to open fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, state of consciousness unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with cerebral laceration AND/OR contusion | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Skull vault X-ray | Procedure site - Direct | True | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with subarachnoid, subdural AND/OR extradural hemorrhage | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Depressed fracture of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing level of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial injury co-occurrent and due to open fracture vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without intracranial injury | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage co-occurrent and due to open fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Intracranial hemorrhage co-occurrent and due to closed fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of vault of skull NOS | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Fracture of vault of skull | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, state of consciousness unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with loss of consciousness of unspecified duration | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with less than 1 hour loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull without mention of intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, unspecified state of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull without mention of intracranial injury, with more than 24 hours loss of consciousness and return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Open fracture of vault of skull with intracranial injury, with concussion, unspecified | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with more than 24 hours loss of consciousness without return to pre-existing conscious level | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 | 
| Closed fracture of vault of skull with intracranial injury, with 1-24 hours loss of consciousness | Finding site | False | Structure of vault of skull | Inferred relationship | Existential restriction modifier | 1 |