Also known as: Cluster headaches and other trigeminal autonomic cephalgias (TAC) / Ciliary neuralgia / Headache histamine / Horton's headache / Headache vasomotor / Migrainous neuralgia / Ciliary neuralgia (finding) / Cluster headache syndrome / Cluster headache syndrome NOS / Chronic cluster headache (disorder) / Chronic cluster headache NOS / Cluster Headache / Cluster headache (disorder) [Ambiguous] / Cluster headache syndrome (disorder) / (Cluster headaches) or (migrainous neuralgia) or (migraine NOS) / Headaches cluster / Cluster headaches