ICD-10-CM > C00-D49 > C73-C75 > C74 > C74.1 C74.1 Malignant neoplasm of medulla of adrenal gland Non-Billable/Non-Specific Codes C74.10Malignant neoplasm of medulla of unspecified adrenal glandC74.11Malignant neoplasm of medulla of right adrenal glandC74.12Malignant neoplasm of medulla of left adrenal gland