G44.1: Vascular headache, not elsewhere classified excludes2 cluster headache (G44.0) complicated headache syndromes (G44.5-) drug-induced headache (G44.4-) migraine (G43.-) other specified headache syndromes (G44.8-) post-traumatic headache (G44.3-) tension-type headache (G44.2-) |