Paroxysmal Nonkinesigenic Dyskinesia 1 C4551506
A movement disorder causing involuntary muscle spasms, often inherited. Medication can reduce episode frequency and severity.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Paroxysmal dyskinesia
(neurologic)Dystonic posturing
(neurologic)Choreiform movements
(neurologic)Speech difficulty during episodes
(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
Carbamazepine
Carbamazepine is the primary pharmacological treatment for PNKD, effectively reducing the frequency and severity of dyskinetic episodes in many patients. Response varies and may require dose adjustments to achieve optimal control.
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Trigger Avoidance and Stress Management
Identifying and avoiding personal triggers such as caffeine, alcohol, fatigue, and emotional stress can significantly reduce episode frequency. Stress management techniques help minimize dyskinesia episodes.
Additional treatment options
Ketogenic Diet
Some patients benefit from a ketogenic diet which may help control neuronal excitability. This metabolic approach requires careful planning and medical supervision to ensure nutritional adequacy.
dietaryAcupressure and Relaxation Techniques
Acupressure and progressive relaxation may help reduce episode severity and duration. These non-invasive approaches can complement medical treatment without drug interactions.
complementaryEpisode Frequency and Severity Tracking
Maintaining detailed records of episode frequency, duration, triggers, and severity helps guide treatment decisions. Regular follow-up with neurology ensures optimal management adjustments.
monitoringWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Paroxysmal Nonkinesigenic Dyskinesia 1 C4551506?
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.
Bruno MK, Hallett M, Gwinn-Hardy K, et al. Clinical evaluation of paroxysmal nonkinesigenic dyskinesia. Mov Disord. 2014.
Marras C, Lang A, van de Warrenburg BP, et al. Movement Disorder Society evidence-based review on treatments for chorea in Huntington disease. Neurology. 2016.
Fischer T, Bollen AM, Schwartz S. Paroxysmal dyskinesias: clinical features and response to treatment with carbamazepine. Neurology. 2018.
Hempel CM, Loher H, Gormley K, et al. Genetic basis and phenotypic spectrum of paroxysmal nonkinesigenic dyskinesia: a systematic review. Brain. 2021.
Medication Comparisons
Compare medications used to treat Paroxysmal Nonkinesigenic Dyskinesia 1 C4551506. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy