More IHS Resources
The International Headache Society (IHS) is the world's membership organisation for all whose professional commitment, whatever their discipline, is to helping people whose lives are affected by headache disorders.Visit the IHS website
||Episodic cluster headache
Cluster headache attacks occurring in periods lasting 7 days to 1 year separated by pain-free periods lasting 1 month or longer.
- Attacks fulfilling criteria A-E for 3.1 Cluster headache
- At least two cluster periods lasting 7-365 days1 and separated by pain-free remission periods of ≥1 month
- Cluster periods usually last between 2 weeks and 3 months.
The duration of the remission period has been increased in this second edition to a minimum of 1 month.
Consult the Sitemap to learn more about the structure of the classification and its main chapters.
IHS vs. ICD-10
To facilitate headache diagnosis in daily practice, the classification provides the corresponding WHO ICD-10NA codes for each IHS code.
The Classification Subcommittee prepares and revises the International Classification of Headache Disorders.
The International Classification of Headache Disorders, 3rd edition, beta version
Extend your electronic library with important IHS publications. All documents may be downloaded free of charge.
Cephalalgia is the official journal of the IHS. It contains original papers on all aspects of headache. The journal provides an international forum for original research papers, review articles and short communications.http://cep.sagepub.com/
IHS Discussion Group
Ask questions and share information about the 2nd edition of
the Headache Classification in one of our peer-to-peer
To the Discussion Group