G44.0

Cluster headache syndrome

Coding guidance (WHO 2019)

Chronic paroxysmal hemicrania Cluster headache: chronic episodic

Sibling codes

G44Other headache syndromes G44.1Vascular headache, not elsewhere classified G44.2Tension-type headache G44.3Chronic post-traumatic headache G44.4Drug-induced headache, not elsewhere classified G44.8Other specified headache syndromes