Parkinson's disease digital illustration

Parkinson's disease Save

ICD-10 code: G20

Chapter: Diseases of the nervous system

Parkinson's Disease: Symptoms, Causes, and Treatments

Parkinson’s disease is a degenerative disorder of the nervous system that affects movement. It is a chronic and progressive condition that develops gradually and worsens over time. Parkinson's disease occurs when the brain cells that produce dopamine, a neurotransmitter that controls movement, become damaged or die. This leads to a range of motor symptoms, including tremors, stiffness, and difficulty with balance and coordination.

Symptoms of Parkinson's Disease

The symptoms of Parkinson’s disease can vary from person to person, but typically include:

  1. Tremors or shaking in the hands, arms, legs, jaw, or face
  2. Stiffness or rigidity of the limbs and trunk
  3. Slow movement
  4. Difficulty with balance and coordination
  5. Impaired posture and balance

Other symptoms may include a soft or monotone voice, a blank or serious facial expression, and difficulty with fine motor tasks such as writing or buttoning clothes. Some people with Parkinson’s disease may also experience non-motor symptoms, including depression, anxiety, and sleep disturbances.

Causes of Parkinson's Disease

The exact cause of Parkinson’s disease is unknown, but it is believed to be caused by a combination of genetic and environmental factors. Several genes have been identified that increase the risk of Parkinson’s disease, but not everyone with these genes will develop the condition. Environmental factors that may increase the risk of Parkinson’s disease include exposure to pesticides and other toxins, head injuries, and viral infections.

Treatments for Parkinson's Disease

There is currently no cure for Parkinson’s disease, but there are several treatments that can help manage the symptoms and improve quality of life. Medications that increase dopamine levels in the brain, such as levodopa, can help improve motor symptoms. Other medications may be used to treat non-motor symptoms such as depression and anxiety.

Physical therapy and exercise can also be helpful in improving mobility and reducing stiffness and rigidity. In some cases, surgery may be recommended to implant a device that stimulates the brain and improves motor symptoms.


Parkinson’s disease is a chronic and progressive disorder that affects movement. While there is no cure for Parkinson’s disease, there are several treatments available that can help manage symptoms and improve quality of life. If you or a loved one is experiencing symptoms of Parkinson’s disease, it is important to speak with a healthcare professional for an accurate diagnosis and appropriate treatment plan.

Diagnosis Codes for Parkinson's disease | G20