ICHD classification and diagnosis of migraine
| Migraine | 
The classification of all headaches, including migraines, is organized by the International Headache Society, and published in the International Classification of Headache Disorders (ICHD). The current version, the ICHD-3 beta, was published in 2013.
The first category within the ICHD is Migraine. Migraines in general are considered to be a neurological syndrome. It is estimated that 11% (303 million) of the global population, including 43 million Europeans and 28 million Americans, experience migraines.