G31: Other degenerative diseases of nervous system, not elsewhere classified
G31.9: Degenerative disease of nervous system, unspecified
The nervous system includes all the nerves in the body, as well as the brain and the spinal cord. The nerves run from the brain and spinal cord into the body. They convey information in the body.
Depending on which area of the nervous system is damaged, one may have a very wide range of different symptoms. One may not be able to move properly or keep having seizures. One’s thinking and behavior may change, for example. The person may be seriously ill.
Patient Disclaimer
The information provided on this page is for general educational purposes only. It is not intended for self-diagnosis and does not replace professional medical advice. Always consult your doctor or a qualified healthcare provider with any questions or concerns about your health.
If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.