ICD-10 Code search

G44.021 - Chronic cluster headache, intractable

Diseases of the nervous system

G40-G47: Episodic and paroxysmal disorders

G44 Other headache syndromes

ICD-10 Code: G44.021 – Chronic cluster headache, intractable

ICD-10 code G44.021 corresponds to Chronic cluster headache, 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.