Table 1.

Diagnostic criteria for IIH-related headache according to the International Classification of Headache Disorders (ICHD-3)

A. New headache, or a significant worsening of a pre-existing headache, fulfilling criterion C B. Both of the following: 1. idiopathic intracranial hypertension (IIH) has been diagnosed 2. cerebrospinal fluid (CSF) pressure exceeds 250 mm CSF (or 280 mm CSF in obese children) C. Either or both of the following: 1. headache has developed or significantly worsened in temporal relation to the IIH, or led to its discovery 2. headache is accompanied by either or both of the following: a) pulsatile tinnitus b) papilloedema D. Not better accounted for by another ICHD-3 diagnosis