Addison's disease
Calciphylaxis
Excess vitamin D
Hypercalcemia of malignancy<unk> 
Hyperthyroidism
Hypothyroidism
Lithium
Milk-alkali syndrome
Paget disease
Sarcoidosis
Thiazide diuretics
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
Torticollis
Hypocalcemic tetany
Magnesium
Hyperparathyroidism
Addison's disease
Hypoparathyroidism
Calciphylaxis
Hypothyroidism
Excess vitamin D
Hyperthyroidism
Hypercalcemia of malignancy