Developmental And Epileptic Encephalopathy 9 C1848137
A rare genetic epilepsy disorder causing frequent seizures and developmental delay from early childhood. Treatment includes anti-seizure medications and developmental support services. Genetic testing helps guide management decisions.
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.
Warning signs - seek immediate care
Seizures
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Severe developmental delay
(neurologic)Hypotonia
(neurologic)Microcephaly
(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
Antiseizure medication therapy
First-line pharmacological management using appropriate antiseizure medications tailored to the specific seizure type. Treatment requires careful titration and monitoring for efficacy and side effects.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Ketogenic diet therapy
High-fat, low-carbohydrate diet that may help reduce seizure frequency in refractory cases. Requires nutritional counseling and regular monitoring of metabolic parameters.
Additional treatment options
Vagus nerve stimulation
Surgical implantation of a device that delivers electrical stimulation to the vagus nerve, which can reduce seizure frequency. Typically considered when medications and dietary therapy are insufficient.
procedureEarly intensive rehabilitation
Comprehensive physical, occupational, and speech therapy program designed to maximize developmental potential and address motor and communication delays associated with the condition.
physical_therapyNeurodevelopmental monitoring
Regular assessments of developmental milestones, seizure control, and overall neurological function to guide treatment adjustments and supportive care decisions.
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 9 C1848137?
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.
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