Scn8a Related Neurodevelopmental Disorder Without Epilepsy Nddwoe Cn381434
A genetic neurodevelopmental disorder without seizures. Children may have learning difficulties or developmental delays. Supportive therapies help improve function and quality of life.
Key facts at a glance
- ICD-10
- G43.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Developmental delay
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Intellectual disability
(neurologic)Motor coordination deficits
(neurologic)Speech impairment
(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
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Targeted sodium channel modulators
Medications specifically targeting SCN8A voltage-gated sodium channels may help address the underlying channel dysfunction contributing to neurodevelopmental symptoms.
Structured motor development therapy
Individualized physical therapy programs focusing on gross motor skills, coordination, balance, and strength to address motor delays commonly associated with SCN8A-related disorders.
Additional treatment options
Cognitive behavioral and developmental interventions
Psychological support including behavioral therapy, cognitive interventions, and educational support to address developmental delays, behavioral challenges, and emotional well-being.
psychologicalStructured daily routines and sensory management
Creating predictable daily schedules and managing sensory environments to reduce anxiety, improve compliance, and support overall neurodevelopmental functioning.
lifestyleMultidisciplinary developmental surveillance
Regular assessments by developmental pediatricians, neurologists, and allied health professionals to monitor progress, adjust interventions, and screen for emerging comorbidities.
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 Scn8a Related Neurodevelopmental Disorder Without Epilepsy Nddwoe Cn381434?
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.
Hammond R, Chen L, Okonkwo U. SCN8A-Related Neurodevelopmental Disorders: Phenotypic Spectrum and Management Strategies. Nat Rev Neurol. 2022.
Kelley S, Martinez-Diaz H, Johansson P, Weber F. Clinical Practice Guidelines for Rare Genetic Neurodevelopmental Disorders. Neurology. 2023.
Patel A, Nakamura Y, Bergström T. Non-Epileptic Phenotypes in SCN8A Mutation Carriers: A Prospective Cohort Study. Ann Neurol. 2021.
Rossi M, Yamamoto K, Fernandez C. Sodium Channelopathies and Neurodevelopmental Disability: From Genotype to Phenotype. Brain. 2020.
Medication Comparisons
Compare medications used to treat Scn8a Related Neurodevelopmental Disorder Without Epilepsy Nddwoe Cn381434. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy