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
|Previously used terms||
Pain in a small circumscribed area of the head in the absence of any lesion of the underlying structures.
- Mild to moderate head pain fulfilling criteria B and C:
- Pain is felt exclusively in a rounded or elliptical area typically 2-6 cm in diameter
- Pain is chronic and either continuous or interrupted by spontaneous remissions lasting weeks to months
- Not attributed to another disorder
There is a slight female preponderance.
Nummular headache is probably a localised terminal branch neuralgia of the trigeminal nerve.
The painful area may be localised in any part of the head but is usually in the parietal region. The pain remains confined to the same symptomatic area which does not change in shape or size over time. Lancinating exacerbations lasting for several seconds or gradually increasing over 10 minutes to 2 hours may be superimposed on the base-line pain. During and between symptomatic periods, the affected area may show variable combinations of hypaesthesia, dysaesthesia, paraesthesia, tenderness and/or discomfort.
Spontaneous periods of remission have been observed in 38% of patients, with return to continuous pain after weeks or months.
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