G44.009 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2018 edition of ICD-10-CM G44.009 became effective on October 1, 2017.
This is the American ICD-10-CM version of G44.009 - other international versions of ICD-10 G44.009 may differ.
Cluster headache syndrome NOS
The following code(s) above G44.009 contain annotation back-references that may be applicable to G44.009:
G00-G99 Diseases of the nervous system
G44 Other headache syndromes
G44.00 Cluster headache syndrome, unspecified
A primary headache disorder that is characterized by severe, strictly unilateral pain which is orbital, supraorbital, temporal or in any combination of these sites, lasting 15-180 min. Occurring 1 to 8 times a day. The attacks are associated with one or more of the following, all of which are ipsilateral: conjunctival injection, lacrimation, nasal congestion, rhinorrhea, facial sweating, eyelid edema, and miosis.