title: The International classification of headache disorders, 2nd edn (ICDH-II).
abstract: Better classification of headache disorders enables better headache research, understanding of headache, communication, and, ultimately, management of a set of disabling neurological disorders.
authors.forename: J
authors.initials: J
authors.lastname: Olesen
authors.forename: T J
authors.initials: TJ
authors.lastname: Steiner
mesh_terms: D020773:Headache Disorders / Q000145:classification* / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D038801:International Classification of Diseases / Q000458:organization & administration / Q000592:standards / Q000706:statistics & numerical data*