VI: Diseases of the nervous system

G30-G32: Other degenerative diseases of the nervous system

The group of conditions classified as other degenerative diseases of the nervous system are a range of disorders characterized by the gradual deterioration and death of nerve cells. These diseases generally involve the malfunctioning and eventual loss of neurons, the building blocks of the nervous system. They can affect various parts of the nervous system, including the brain and peripheral nerves, leading to a broad spectrum of symptoms based on the areas affected. Common symptoms may include movement problems, memory issues, and changes in sensation such as pain, tingling, or numbness. These conditions are typically chronic and worsen over time. While some of these diseases are genetic, others may be caused by a combination of environmental, lifestyle, and genetic factors. The disease progression largely depends on the specific condition, but all are noted for their gradual, often relentless course that can significantly impact a person's ability to function normally.