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5. HEADACHE ATTRIBUTED TO HEAD AND/OR NECK TRAUMA 6. HEADACHE ATTRIBUTED TO CRANIAL OR CERVICAL VASCULAR DISORDER 6.1. Headache attributed to ischaemic stroke or transient ischaemic attack6.1.1. Headache attributed to ischaemic stroke (cerebral infarction) [I63] 6.1.2. Headache attributed to transient ischaemic attack (TIA) [G45] 6.2. Headache attributed to non-traumatic intracranial haemorrhage [I62] 6.3. Headache attributed to unruptured vascular malformation [Q28] 6.4. Headache attributed to arteritis [M31]6.5. Carotid or vertebral artery pain [I63.0, I63.2, I65.0, I65.2 or I67.0]6.6. Headache attributed to cerebral venous thrombosis (CVT) [I63.6] 6.7. Headache attributed to other intracranial vascular disorderBibliography7. HEADACHE ATTRIBUTED TO NON-VASCULAR INTRACRANIAL DISORDER 8. HEADACHE ATTRIBUTED TO A SUBSTANCE OR ITS WITHDRAWAL 9. HEADACHE ATTRIBUTED TO INFECTION 10. HEADACHE ATTRIBUTED TO DISORDER OF HOMOEOSTASIS 11. HEADACHE OR FACIAL PAIN ATTRIBUTED TO DISORDER OF CRANIUM, NECK, EYES, EARS, NOSE, SINUSES, TEETH, MOUTH OR OTHER FACIAL OR CRANIAL STRUCTURES 12. HEADACHE ATTRIBUTED TO PSYCHIATRIC DISORDER 

IHS	Diagnosis	ICD-10
6.1.1	Headache attributed to ischaemic stroke (cerebral infarction) [I63]	G44.810

Diagnostic criteria:

Any new acute headache fulfilling criterion C
Neurological signs and/or neuroimaging evidence of a recent ischaemic stroke
Headache develops simultaneously with or in very close temporal relationship to signs or other evidence of ischaemic stroke

Comments:

The headache of ischaemic stroke is accompanied by focal neurological signs and/or alterations in consciousness usually allowing easy differentiation from the primary headaches. It is usually of moderate intensity and has no specific characteristics.

Headache accompanies ischaemic stroke in 17-34% of cases; it is more frequent in basilar- than in carotid-territory strokes. It is of little practical value in establishing stroke aetiology except that headache is very rarely associated with lacunar infarcts but extremely common in arterial dissection.

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