Diagnostic criteria:
- Headache previously fulfilling criteria for 9.1.3 Headache attributed to intracranial fungal or other parasitic infection, and fulfilling criterion C
- Intracranial fungal or other parasitic infection has resolved
- Headache has persisted for >3 months after resolution of the intracranial fungal or other parasitic infection
- Not better accounted for by another ICHD-3 diagnosis, and hydrocephalus has been excluded by neuroimaging.