Musculoskeletal<unk> 
Dystonic reaction
Cervical spondylosis
Cervical stenosis
Cancer
Cervical spine fracture and/or dislocation
Epidural abscess
Vertebral osteomyelitis
Transverse myelitis
Temporal arteritis
Epidural hematoma (anticoagulation, hemophilia)
Cervical disk herniation
Blunt neck trauma
Anterior horn disease
C1 and C2 fractures
Cervical radiculopathy
Acute tetanus
Akathisia
Conversion disorder
Drug toxicity (anticholinergic, phenytoin, valproate, carbamazepine)
Dystonic reaction
Electrolyte abnormality
Hypocalcemic tetany
Magnesium
Mandible dislocation
Meningitis
Peritonsillar abscess
Rabies
Seizure
Strychnine poisoning
Stroke
Temporomandibular disorder<unk> 
Hypocalcemic tetany
Magnesium
Chorea
Sydenham's chorea
Neuroleptic malignant syndrome
Serotonin syndrome
Hypocalcemia
Strychnine toxicity
Acute tetanus
Parkinson's disease
Mono amine oxidase inhibitor toxicity
Phencyclidine toxicity
Anti-NMDA receptor encephalitis
Huntington disease
Wilson's disease 
CVA
Schizophrenia
Psychotic agitation
Dementia
Lewy body dementia
Vascular dementia
Frontotemporal dementia
Dystonic reaction
Extrapyramidal reaction<unk> 
Idiopathic movement disorder
Sydenham's chorea
Lewy body dementia
Vascular dementia
Frontotemporal dementia
Torticollis
Musculoskeletal
Facial paralysis
Dysgeusia
Dystonic reaction
Stridor 
Cervical spondylosis
Stridor