A6.10 Persistent headache attributed to past cranial or cervical vascular disorder

A. Headache previously diagnosed as 6. Headache attributed to cranial or cervical vascular disorder or one of its subtypes or subforms, and fulfilling criterion C
B. The cranial or cervical vascular disorder causing the headache has been effectively treated or has spontaneously remitted
C. Headache has persisted for >3 months after effective treatment or spontaneous remission of the vascular disorder
D. Not better accounted for by another ICHD-3 diagnosis.

Comment:
Headaches meeting the criteria for A6.10 Persistent headache attributed to past cranial or cervical vascular disorder, if they exist, have been poorly documented; research is needed to establish better criteria for causation.