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1. MIGRAINE 2. TENSION-TYPE HEADACHE (TTH) 3. CLUSTER HEADACHE AND OTHER TRIGEMINAL AUTONOMIC CEPHALALGIAS 3.1. Cluster headache 3.1.1. Episodic cluster headache3.1.2. Chronic cluster headache 3.2. Paroxysmal hemicrania 3.3. Short-lasting unilateral neuralgiform headache attacks with conjunctival injection and tearing (SUNCT) 3.4. Probable trigeminal autonomic cephalalgia References4. OTHER PRIMARY HEADACHES 

IHS	Diagnosis	ICD-10
3.1.1	Episodic cluster headache	G44.01

Description:

Cluster headache attacks occurring in periods lasting 7 days to 1 year separated by pain-free periods lasting 1 month or longer.

Diagnostic criteria:

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

Note:

Cluster periods usually last between 2 weeks and 3 months.

Comment:

The duration of the remission period has been increased in this second edition to a minimum of 1 month.

Sitemap

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.

IHS Subcommittee

The Classification Subcommittee prepares and revises the International Classification of Headache Disorders.

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Cephalalgia

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.www.cephalalgia.org

IHS Discussion Group

Ask questions and share information about the 2nd edition of the Headache Classification in one of our peer-to-peer forums. To the Discussion Group

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