8.1.9 Headache attributed to exogenous acute pressor agent

Description:
Headache occurring during, and caused by, an acute rise in blood pressure induced by an exogenous pressor agent.

Diagnostic criteria:
A. Any headache fulfilling criterion C
B. An acute rise in blood pressure has followed administration of an exogenous pressor agent
C. Evidence of causation demonstrated by both of the following:

    1. headache has occurred within 1 hr of administration of the pressor agent
    2. headache has resolved within 72 hr after administration of the pressor agent has ceased

D. Not better accounted for by another ICHD-3 diagnosis.