ICD-10-CM > C00-D49 > C69-C72 > C72 > C72.5 C72.5 Malignant neoplasm of other and unspecified cranial nerves Non-Billable/Non-Specific Codes C72.50Malignant neoplasm of unspecified cranial nerveC72.59Malignant neoplasm of other cranial nerves