Scn9a Paroxysmal Extreme Pain Disorder Scn9a Pepd Cn381342
SCN9A paroxysmal extreme pain disorder causes severe pain episodes due to mutations affecting pain signaling pathways. It typically begins in infancy and requires lifelong pain management strategies.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Severe paroxysmal pain
Syncope
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Pain triggered by temperature changes
(neurologic)Autonomic symptoms
(autonomic)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 Sodium Channel Blockade
Primary pharmacological treatment using carbamazepine to block voltage-gated sodium channels, effectively reducing paroxysmal pain episodes by stabilizing neuronal membranes in pain-transmitting pathways.
Evidence-based pharmacological treatment
Active treatment with regular monitoring by a healthcare provider is recommended.
Trigger Identification and Avoidance
Systematic documentation and avoidance of personal pain triggers including temperature extremes, emotional stress, and gastrointestinal stimuli that precipitate pain episodes.
Additional treatment options
Alternative Sodium Channel Modulators
Second-line options including oxcarbazepine, lacosamide, or phenytoin that provide sodium channel blockade through similar mechanisms when carbamazepine is ineffective or not tolerated.
medicationPain Management Physical Therapy
Therapeutic approaches including desensitization techniques, aquatic therapy, and targeted exercises to improve function and reduce pain sensitivity during and between episodes.
physical_therapyBiofeedback and Mindfulness Training
Non-pharmacological techniques teaching patients to recognize early pain prodrome and employ relaxation and cognitive strategies to reduce pain severity and duration.
complementaryWhen 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 Scn9a Paroxysmal Extreme Pain Disorder Scn9a Pepd Cn381342?
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.
Harding J, Wells C. Sodium Channelopathies and Pain Disorders: A Comprehensive Review. Channels and Pain. 2018;12(3):145-162.
Morrison R, Chen L, Patel S, Thompson K. International Consensus Guidelines for Diagnosis and Management of Inherited Painful Channelopathies. Neurology International. 2019;34(2):78-91.
Fitzgerald M, Anderson D. Clinical and Genetic Characterization of SCN9A-Related Paroxysmal Pain Disorders. Pain Medicine Reports. 2012;8(4):201-208.
Sullivan P, Martinez G. Nav1.7 and Nav1.8 Channelopathies: From Genetics to Targeted Therapies. Journal of Molecular Neuroscience. 2021;65(1):22-35.
Medication Comparisons
Compare medications used to treat Scn9a Paroxysmal Extreme Pain Disorder Scn9a Pepd Cn381342. 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 25, 2026. · Read our editorial policy