Developmental And Epileptic Encephalopathy 31b C5830459
A severe genetic disorder causing seizures and developmental impairment. Treatment focuses on symptom management and supportive care, with specific approaches depending on the underlying genetic cause.
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.
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Seizures
(neurologic)Developmental plateau
(neurologic)Absence seizures
(neurologic)Myoclonus
(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
Anti-seizure medications (ASMs)
Individualized pharmacological approach targeting specific seizure types characteristic of DEE31b. Treatment response may vary based on underlying genetic mutation.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Modified Ketogenic Diet Therapy
Tailored ketogenic diet protocol with potential use of MCT oil supplementation to optimize seizure control while maintaining nutritional adequacy.
Additional treatment options
Responsive Neurostimulation (RNS)
Implantable device that detects seizures and delivers targeted electrical stimulation to the seizure focus. Suitable for focal-onset seizures.
surgicalMusic Therapy and Auditory Integration
Therapeutic use of music to potentially modulate neural activity and improve mood, behavior, and quality of life in patients with severe encephalopathy.
complementaryContinuous EEG and Video Monitoring
Inpatient monitoring to characterize seizure patterns, assess treatment efficacy, and identify potential surgical candidates with focal abnormalities.
monitoringWhen 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 Developmental And Epileptic Encephalopathy 31b C5830459?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
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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 25, 2026. · Read our editorial policy