C72.3 Malignant neoplasm of optic nerveNon-billable header with 3 child codes.
C72.30 Malignant neoplasm of unspecified optic nerveC72.31 Malignant neoplasm of right optic nerveC72.32 Malignant neoplasm of left optic nerveC69 Malignant neoplasm of eye and adnexa ("malignant neoplasm of optic nerve (C72.3-)")C71 Malignant neoplasm of brain ("malignant neoplasm of cranial nerves (C72.2-C72.5)")C72.1 Malignant neoplasm of cauda equinaC72.2 Malignant neoplasm of olfactory nerveC72.20 Malignant neoplasm of unspecified olfactory nerveC72.21 Malignant neoplasm of right olfactory nerveC72.22 Malignant neoplasm of left olfactory nerveC72.3 Malignant neoplasm of optic nerve (this code)C72.30 Malignant neoplasm of unspecified optic nerveC72.31 Malignant neoplasm of right optic nerveC72.32 Malignant neoplasm of left optic nerveC72.4 Malignant neoplasm of acoustic nerveC72.40 Malignant neoplasm of unspecified acoustic nerve