C00-C75: Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic and related tissue

C69-C72: Malignant neoplasms of eye, brain and other parts of central nervous system

The group of conditions known as malignant neoplasms of the eye, brain, and other parts of the central nervous system are serious, life-threatening disorders characterized by the uncontrolled and rapid growth of abnormal cells in these areas. These types of cancers can affect various parts of the system including the eye, brain, spinal cord, and peripheral nerves. The exact cause of these malignancies is unknown, however, genetic factors, exposure to certain chemicals and radiation, and some chronic infections may contribute to their development. Symptoms can vary greatly depending on the location and size of the tumor but may include headaches, mental changes, seizures, vision problems, and other neurological signs. Disease progression is often rapid, leading to significant damage and impairment. These malignancies primarily affect the nervous system, but they can spread to other body parts through the bloodstream or lymph system.