ICD-10-CM Book 2025 Edition
Chapters ICD-10-CM Book Table of Content /
chapter 6 G00-G99 Diseases of the nervous system /
G40-G47 Episodic and paroxysmal disorders /
G44 Other headache syndromes
Billable ICD-10-CM Code G44.009
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G44.009
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Cluster headache syndrome, unspecified, not intractable
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| Cluster headache syndrome NOS |