Benign neoplasm of cranial nerves

This code signifies the presence of a non-cancerous tumor originating from any of the twelve pairs of cranial nerves. These neoplasms are typically slow-growing and do not metastasize, but their location can cause significant neurological symptoms due to compression of vital structures.

Apply this code when documentation confirms a benign tumor affecting a cranial nerve, such as an acoustic neuroma (vestibular schwannoma), trigeminal schwannoma, or optic nerve glioma. Supporting documentation should include pathology reports confirming benignity or imaging studies clearly identifying a non-malignant cranial nerve mass.

• Specify the exact cranial nerve involved if known and documented, using more specific codes if available within the ICD-9-CM hierarchy.
• Distinguish carefully between benign and malignant cranial nerve neoplasms; malignant tumors would be coded differently.
• Ensure documentation clearly states "benign" or provides pathology results confirming the non-malignant nature of the growth.