| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Endoscopy of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Repair of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Injection of artery of head and neck | Procedure site - Indirect (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Surgical occlusion of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Exploration of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Angiography of artery of head, neck and/or brain (procedure) | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Ligation of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Incision of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Surgical occlusion of intracranial artery | Procedure site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Division of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Aneurysmectomy with anastomosis of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Aneurysmectomy with anastomosis of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Arteriectomy with anastomosis of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Arteriectomy with anastomosis of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Gas endarterectomy of head and neck artery | Procedure site - Indirect (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Excision of lesion of artery of head and neck | Procedure site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Endarterectomy of head and neck artery | Procedure site - Indirect (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Endarterectomy of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 3 | 
| Removal of embolus of head and neck artery | Procedure site - Indirect (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Gas endarterectomy of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 3 | 
| Intravenous digital subtraction angiography of cervicocerebral arteries (procedure) | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Angiography of cerebral arteries (procedure) | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Excision of lesion of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Percutaneous endarterectomy of intracranial artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 3 | 
| Ligation of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Division of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Head and neck arterial embolus | Finding site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Angiography of cervicocerebral arteries | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Head and neck arterial thrombosis | Finding site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Aneurysm of neck artery NOS | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Endoscopy of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Exploration of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Multiple and bilateral precerebral arterial occlusion | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Incision of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Surgical occlusion of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Surgical occlusion of artery of head and neck | Procedure site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Angiography of cerebral arteries (procedure) | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Precerebral arterial occlusion | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Destructive procedure on artery of head and neck | Procedure site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Aneurysmectomy of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Dissection of cervicocerebral artery | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Operative procedure on artery of head and neck | Procedure site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Thrombectomy of head and neck artery | Procedure site - Indirect (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Aneurysm of head and neck artery | Finding site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Embolic stroke (disorder) | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Transplantation of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Angiography of artery of head, neck and/or brain (procedure) | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Precerebral artery occlusion NOS | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Other precerebral artery occlusion | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Injection of artery of head and neck | Procedure site - Indirect (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Aneurysmectomy with graft replacement of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Excision of artery of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Injury of artery of head and neck | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Removal of embolus of head and neck artery | Procedure site - Indirect (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Excision of lesion of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Repair of artery of head and neck | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Arteriectomy with graft replacement of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Cardioembolic stroke (disorder) | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Surgical occlusion of intracranial artery | Procedure site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Aneurysm of neck artery NOS | Finding site | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| External carotid artery structure | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of external carotid artery | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of lingual artery | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of occipital artery | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of ascending pharyngeal artery | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of facial artery | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Branch of vertebral artery | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Internal carotid artery structure | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Magnetic resonance angiography of head and neck | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Magnetic resonance angiography of head and neck with contrast (procedure) | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Embolization of artery of head and/or neck using fluoroscopic guidance with contrast (procedure) | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Embolization of artery of head and/or neck using fluoroscopic guidance with contrast (procedure) | Procedure site - Direct (attribute) | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 3 | 
| Structure of wall of artery of head, neck and/or brain | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| artär i hals och/eller hjärna, struktur | Is a | False | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Vertebrobasilar artery syndrome | Finding site | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Cranial branch of vertebral artery | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Cervical branch of vertebral artery | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Embolization of artery of head and/or neck using fluoroscopic guidance with contrast (procedure) | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 1 | 
| Structure of precerebral and/or intracranial artery (body structure) | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Carotid artery structure | Is a | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some |  | 
| Arteriectomy with graft replacement of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 | 
| Aneurysmectomy with graft replacement of head and neck artery | Procedure site - Direct (attribute) | True | Structure of artery of head, neck AND/OR brain | Inferred relationship | Some | 2 |