ICD-10 Code: G44.001 – Cluster headache syndrome, unspecified, intractable

ICD-10 code G44.001 corresponds to Cluster headache syndrome, unspecified, intractable. This code is classified under the chapter G44 Other headache syndromes, which is part of the G40-G47: Episodic and paroxysmal disorders category.

The parent chapter is Diseases of the nervous system.