G54: Nerve root and plexus disorders

Nerve root and plexus disorders are a group of conditions affecting the nerve roots, which are the points where nerves branch off from the spinal cord, and the plexuses, which are networks of intersecting nerves. These disorders occur when nerves become irritated, compressed, or damaged. This can be caused by various factors including injuries, tumors, infections, or diseases like diabetes. Symptoms depend on the affected nerves but can include pain, numbness, weakness, and abnormal sensations in the areas of the body supplied by those nerves. The progression of these disorders varies greatly based on the underlying cause. Some conditions may be chronic and progressive, causing a gradual decline in nerve function, while others might be acute but potentially reversible with treatment. Nerve root and plexus disorders can significantly affect the nervous system and the functioning of the limbs or other areas these nerves serve.