C71: Malignant neoplasm of brain

C71.5: Malignant neoplasm: Cerebral ventricle

The tissue in the body is made up of cells. With cancer, the cells multiply uncontrollably, which leads to a malignant neoplasm (abnormal growth of tissue) developing. The cancer cells can destroy the healthy tissue and spread throughout the body.

There are cavities with cerebrospinal fluid in the brain, around the brain and around the spinal cord. Among other things, the cerebrospinal fluid cushions the brain and spinal cord during knocks and also nourishes the brain cells. Your malignant brain tumor has developed around cavities in the brain.

Not every cancer is the same. There are cancers that develop quickly. You may then quickly feel seriously ill. But there are also cancers that progress slowly. You may then feel generally unwell or weak, or even have no symptoms at all to start with.

If the brain tumor hinders the drainage of cerebrospinal fluid, then the pressure in the head can increase. This can lead to various symptoms, such as headaches and nausea. You may also have seizures. These seizures may only affect one part of the body. A seizure may also occur without cramp. Then you are passed out for a short time.

Please note: This ICD code may also derive from the ICD-O system. If this is the case, there are usually additional letters and numbers in addition to the code. It starts with the letter M, followed by 4 digits and then a slash. There is another digit after the slash.

If it is an ICD-O code, then this does not describe a malignant cancer in all cases. The last digit after the slash gives you more detailed information about this: