Harman Patil (Editor)

International Classification of Headache Disorders

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The International Classification of Headache Disorders (ICHD) is a detailed hierarchical classification of all headache-related disorders published by the International Headache Society. It is considered the official classification of headaches by the World Health Organization, and, in 1992, was incorporated into the 10th edition of their International Classification of Diseases (ICD-10). Each class of headache contains explicit diagnostic criteria—meaning that the criteria include quantities rather than vague terms like several or usually—that are based on clinical and laboratory observations.

Contents

The ICHD was first published in 1988 (now known as the ICHD-1). A second version, the ICHD-2, was published in 2004. The most current version, ICHD-3 beta, was published in 2013.

ICHD 1, ICD10 G43: Migraine

Migraine without aura Migraine with aura Childhood periodic syndromes that are commonly precursors of migraine Retinal migraine Complications of migraine Migraine-triggered seizure Probable migraine

ICHD 2, ICD10 G44.2: Tension-type headache (TTH)

Infrequent episodic tension-type headache Frequent episodic tension-type headache Chronic tension-type headache Probable tension-type headache

ICHD 3, ICD10 G44.0: Cluster headache and other trigeminal autonomic cephalagias

Cluster headache Paroxysmal hemicrania Short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT) Probable trigeminal autonomic cephalagia

ICHD 4, ICD10 G44.80: Other primary headaches

Primary stabbing headache Primary cough headache Primary exertional headache Primary headache associated with sexual activity Hypnic headache Primary thunderclap headache Hemicrania continua New daily persistent headache (NDPH)

ICHD 5, ICD10 G44.88: Headache attributed to head and/or neck trauma

Acute post-traumatic headache Chronic post-traumatic headache Acute headache attributed to whiplash injury Chronic headache attributed to whiplash injury Headache attributed to traumatic intracranial haematoma Headache attributed to other head and/or neck trauma Post-craniotomy headache

ICHD 6, ICD10 G44.81: Headache attributed to cranial or cervical vascular disorder

Headache attributed to ischaemic stroke or transient ischaemic attack Headache attributed to non-traumatic intracranial haemorrhage Headache attributed to unruptured vascular malformation

(Sturge Weber syndrome)

Headache attributed to arteritis Carotid or vertebral artery pain Headache attributed to cerebral venous thrombosis (CVT) Headache attributed to other intracranial vascular disorder

Infarcts and Leukoencephalopathy)

episodes)

ICHD 7, ICD10 G44.82: Headache attributed to non-vascular intracranial disorder

Headache attributed to high cerebrospinal fluid pressure

or hormonal causes

Headache attributed to low cerebrospinal fluid pressure Headache attributed to non-infectious inflammatory disease Headache attributed to intracranial neoplasm

caused by neoplasm

Headache attributed to intrathecal injection Headache attributed to epileptic seizure Headache attributed to Chiari malformation type I (CM1) Syndrome of transient Headache and Neurological Deficits with cerebrospinal fluid Lymphocytosis (HaNDL) Headache attributed to other non-vascular intracranial disorder

ICHD 8, ICD10 G44.4 or G44.83: Headache attributed to a substance or its withdrawal

Headache induced by acute substance use or exposure

indications

Medication-overuse headache (MOH) Headache as an adverse event attributed to chronic medication Headache attributed to substance withdrawal

ICHD 9, ICD10 G44.821 or G44.881: Headache attributed to infection

Headache attributed to intracranial infection Headache attributed to systemic infection Headache attributed to HIV/AIDS Chronic post-infection headache

ICHD 10, ICD10 G44.882: Headache attributed to disorder of homeostasis

Headache attributed to hypoxia and/or hypercapnia Dialysis headache Headache attributed to arterial hypertension

encephalopathy

Headache attributed to hypothyroidism Headache attributed to fasting Cardiac cephalalgia Headache attributed to other disorder of homoeostasis

ICHD 11, ICD10 G44.84: Headache or facial pain attributed to disorder of cranium, neck, eyes, ears, nose, sinuses, teeth, mouth or other facial or cranial structures

Headache attributed to disorder of cranial bone Headache attributed to disorder of neck Headache attributed to disorder of eyes Headache attributed to disorder of ears Headache attributed to rhinosinusitis Headache attributed to disorder of teeth, jaws or related structures Headache or facial pain attributed to temporomandibular joint (TMJ) disorder Headache attributed to other disorder of cranium, neck, eyes, ears, nose, sinuses,

teeth, mouth or other facial or cervical structures

ICHD 12, ICD10 R51: Headache attributed to psychiatric disorder

Headache attributed to somatization disorder Headache attributed to psychotic disorder

ICHD 13, ICD10 G44.847, G44.848, or G44.85: Cranial neuralgias and central causes of facial pain

ICHD 13.1, ICD10 G44.847: Trigeminal neuralgia Glossopharyngeal neuralgia Nervus intermedius neuralgia Superior laryngeal neuralgia Nasociliary neuralgia Supraorbital neuralgia Other terminal branch neuralgias Occipital neuralgia Neck-tongue syndrome External compression headache Cold-stimulus headache Constant pain caused by compression, irritation or distortion of cranial nerves or upper cervical roots by structural lesions Optic neuritis Ocular diabetic neuropathy Head or facial pain attributed to herpes zoster Tolosa-Hunt syndrome Opthalamoplegic migraine Central causes of facial pain Other cranial neuralgia or other centrally mediated facial pain

ICHD 14, ICD10 R51: Other headache, cranial neuralgia, central or primary facial pain

Headache not elsewhere classified Headache unspecified

References

International Classification of Headache Disorders Wikipedia
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