Significant head trauma meets 1 or more of the following criteria:
(1) loss of consciousness
(2) post-traumatic amnesia lasting > 10 minutes
(3) 2 or more of the following confirmatory signs:
(3a) abnormal clinical neurologic examination
(3b) abnormal skull X-ray
(3c) abnormal neuroimaging
(3d) abnormal evoked potentials
(3e) abnormal CSF examination
(3f) abnormal vestibular function test
(3g) abnormal neuropsychological testing
If the head trauma is not significant, then it is considered minor.
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Feature
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significant head trauma with loss of consciousness
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significant trauma without loss of consciousness
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minor head trauma
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onset of the headache
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< 14 days after regaining consciousness
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< 14 days after trauma
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< 14 days after trauma
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disappearance for acute post-traumatic headache
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<= 8 weeks after regaining consciousness
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<= 8 weeks after trauma
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<= 8 weeks after trauma
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disappearance for chronic post-traumatic headache
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> 8 weeks after regaining consciousness
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> 8 weeks after trauma
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> 8 weeks after trauma
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