Unilateral head and/or facial pain in the distribution of a trigeminal nerve and with the characteristics of classical trigeminal neuralgia, induced by contact between the affected trigeminal nerve and a space occupying lesion.
A. Unilateral head and/or facial pain with the characteristics of 13.1.1 Classical trigeminal neuralgia with or without concomitant persistent facial pain and fulfilling criterion C
B. A space occupying lesion, and contact between the lesion and the affected trigeminal nerve, have been demonstrated by imaging
C. Pain has developed after contact occurred between the lesion and the trigeminal nerve, or led to its discovery
D. Not better accounted for by another ICHD-3 diagnosis.
Patients with 220.127.116.11 Painful trigeminal neuropathy attributed to space occupying lesion have clinically detectable sensory signs or electrophysiological abnormalities.