ICD-10-CM > G00-G99 > G50-G59 > G50 G50 Disorders of trigeminal nerve Non-Billable/Non-Specific Includes disorders of 5th cranial nerve Codes G50.0Trigeminal neuralgiaG50.1Atypical facial painG50.8Other disorders of trigeminal nerveG50.9Disorder of trigeminal nerve, unspecified