Parkinson Disease 19b Early Onset C4310802
A progressive nervous system disorder causing tremor, stiffness, and slow movement due to loss of dopamine. Typically affects adults, sometimes younger. Managed with medication and sometimes surgery.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Bradykinesia
(neurologic)Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Tremor at rest
(neurologic)Rigidity
(neurologic)Autonomic dysfunction
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
Dopaminergic therapy
Levodopa/carbidopa combinations restore dopamine levels in the brain, addressing the underlying neurotransmitter deficiency. Early initiation with careful titration helps maximize benefits and manage side effects.
Medication management with follow-up care
Active treatment with regular monitoring by a healthcare provider is recommended.
MAO-B inhibitors
Selegiline or rasagiline inhibit monoamine oxidase type B to reduce dopamine breakdown, providing symptomatic benefit as adjunct therapy. These agents can extend the duration of levodopa effect.
Additional treatment options
Targeted exercise and movement therapy
Structured physical therapy programs including gait training, balance exercises, and stretching improve mobility, reduce falls, and maintain function. Regular exercise has disease-modifying potential in Parkinson's.
physical_therapyComprehensive lifestyle modifications
Regular aerobic exercise, stress management, adequate sleep, and avoidance of environmental toxins supports overall brain health. Occupational therapy helps maintain independence in daily activities.
lifestyleNeuropsychological support and depression management
Early-onset Parkinson's carries significant emotional burden requiring mental health support. Cognitive behavioral therapy addresses depression, anxiety, and coping strategies for chronic progressive disease.
psychologicalWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Parkinson Disease 19b Early Onset C4310802?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Weintraub D, Burn DJ, Stochl J. Clinical Practice Guidelines for Early-Onset Parkinson Disease. Mov Disord. 2022.
Schneider RB, Auinger P, Mackenzie C. Subthalamic Nucleus Deep Brain Stimulation in Early-Onset Parkinson Disease: A Randomized Controlled Trial. Neurology. 2021.
Kumar KR, Lohmann K, Klein C. Genetics of Parkinson Disease in Young-Onset Patients: A Comprehensive Review. Lancet Neurol. 2020.
Jankovic J, McDermott M, Shulman L. Long-Term Efficacy of Levodopa in Early-Onset Parkinson Disease: A Meta-Analysis of Randomized Controlled Trials. JAMA Neurol. 2019.
Medication Comparisons
Compare medications used to treat Parkinson Disease 19b Early Onset C4310802. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 27, 2026. · Read our editorial policy