C75: Malignant neoplasm of other endocrine glands and related structures

C75.3: Malignant neoplasm: Pineal gland

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.

The pineal gland is in the brain. The pineal gland secretes messenger substances that regulate things like the sleep-wake cycle of the body.

If cancer develops in this tissue, then this can press on certain parts of the brain. For example, it may no longer be possible to move the eyes properly as a result. Too much fluid may also build up in the brain. This can increase the pressure in the head. You can then have a headache, for example, and possibly have to vomit.

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.

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: