4.7.1 Probable primary stabbing headache

Diagnostic criteria:

1. Head pain occurring spontaneously as a single stab or series of stabs
2. Two only of the following:
   1. each stab lasts for up to a few seconds
   2. stabs recur with irregular frequency, from one to many per day
   3. no cranial autonomic symptoms
3. Not fulfilling ICHD-3 criteria for any other headache disorder
4. Not better accounted for by another ICHD-3 diagnosis.