G44.00Non-billable (header)
Cluster headache syndrome, unspecified
Inclusion Terms
- •Ciliary neuralgia
- •Cluster headache NOS
- •Histamine cephalgia
- •Lower half migraine
- •Migrainous neuralgia
Code Hierarchy
┌6Diseases of the nervous system (G00-G99)├G40-G47Episodic and paroxysmal disorders (G40-G47)├G44Other headache syndromes
└G44.00Cluster headache syndrome, unspecified
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