The International Headache Society (IHS) considers classification and diagnostic criteria for headache disorders to be a very important issue. Therefore, its Headache Classification Committee prepared, in 1988, Classification and Diagnostic Criteria for Headache Disorders, Cranial Neuralgias and Facial Pain, which has been accepted throughout the world for scientific and clinical purposes.
This classification has been translated into more than 20 different languages. Increasing knowledge of the pathogenesis of some types of headache and wide nosographic research led to a revision of the first edition of the IHS classification, called The International Classification of Headache Disorders, 2nd edition, which was presented during the XI Congress of the IHS in Rome in September 2003.
Its full version was published in Cephalagia 2004, Volume 24, Supplementum 1. Members of the Committee of the Czech Headache Society translated this classification into the Czech language both for research and for clinical application, in accordance with the aims of the IHS, to improve the diagnostics, treatment and care of headache.