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
||Chronic post-craniotomy headache
- Headache of variable intensity, maximal in the area of the craniotomy, fulfilling criteria C and D
- Craniotomy performed for a reason other than head trauma1
- Headache develops within 7 days after craniotomy
- Headache persists for >3 months after craniotomy
- When the craniotomy was for head trauma, code as 5.2.1 Chronic post-traumatic headache attributed to moderate or severe head injury.
Immediate post-operative headache may occur in up to 80% of patients after craniotomy but resolves in most patients within 7 days. Fewer than one-quarter develop persistent (>3 months) headache related to the surgical procedure. Posterior fossa procedures, especially suboccipital craniotomies performed for acoustic neuromas, are more likely to be associated with post-craniotomy headache.
The pathogenesis of chronic headache after craniotomy is unclear but may involve meningeal inflammation, nerve entrapment, adhesion of muscle to dura or other mechanisms. Modifications in the operative procedure, including the use of osteoplastic cranioplasty, may lead to a reduction in the incidence of post-craniotomy headache by preventing adhesion of muscle and fascia to the underlying dura.
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
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the Headache Classification in one of our peer-to-peer
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