G44.09Non-billable (header)
Other trigeminal autonomic cephalgias (TAC)
Code Hierarchy
┌6Diseases of the nervous system (G00-G99)├G40-G47Episodic and paroxysmal disorders (G40-G47)├G44Other headache syndromes
└G44.09Other trigeminal autonomic cephalgias (TAC)
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