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5. HEADACHE ATTRIBUTED TO HEAD AND/OR NECK TRAUMA 5.1. Acute post-traumatic headache5.1.1. Acute post-traumatic headache attributed to moderate or severe head injury [S06] 5.1.2. Acute post-traumatic headache attributed to mild head injury [S09.9] 5.2. Chronic post-traumatic headache 5.3. Acute headache attributed to whiplash injury [S13.4] 5.4. Chronic headache attributed to whiplash injury [S13.4] 5.5. Headache attributed to traumatic intracranial haematoma 5.6. Headache attributed to other head and/or neck trauma [S06]5.7. Post-craniotomy headacheBibliography6. HEADACHE ATTRIBUTED TO CRANIAL OR CERVICAL VASCULAR DISORDER 7. 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
5.1.1	Acute post-traumatic headache attributed to moderate or severe head injury [S06]	G44.880

Diagnostic criteria:

Headache, no typical characteristics known, fulfilling criteria C and D
Head trauma with at least one of the following:
1. loss of consciousness for >30 minutes
2. Glasgow Coma Scale (GCS) <13
3. post-traumatic amnesia for >48 hours
4. imaging demonstration of a traumatic brain lesion (cerebral haematoma, intracerebral and/or subarachnoid haemorrhage, brain contusion and/or skull fracture)
Headache develops within 7 days after head trauma or after regaining consciousness following head trauma
One or other of the following:
1. headache resolves within 3 months after head trauma
2. headache persists but 3 months have not yet passed since head trauma

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IHS vs. ICD-10

To facilitate headache diagnosis in daily practice, the classification provides the corresponding WHO ICD-10NA codes for each IHS code.

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