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Developmental And Epileptic Encephalopathy 69 C4748988

Published: July 22, 2026Updated: August 26, 2026

A genetic form of epilepsy and encephalopathy that begins in infancy, causing developmental delays and often treatment-resistant seizures. Multidisciplinary care aims to reduce seizures and support development.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

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

!

Status epilepticus

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Global developmental delay

(neurologic)

Ataxia

(neurologic)

Microcephaly

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
2

Targeted Antiepileptic Therapy

Individualized antiepileptic drug regimen based on seizure type classification and genetic findings to optimize seizure control.

medication
3

Video EEG Monitoring

Inpatient video-EEG monitoring to characterize seizure semiology and guide treatment decisions.

monitoring

Additional treatment options

Modified Atkins Diet

Less restrictive alternative to ketogenic diet that may improve seizure control through carbohydrate restriction.

dietary

Neuropsychological Support

Cognitive and behavioral assessment and intervention to address developmental delays and psychological comorbidities.

psychological

Stress Reduction Techniques

Non-pharmacological approaches including massage, music therapy, and relaxation techniques to complement medical treatment.

complementary

When 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.

Q

What is Developmental And Epileptic Encephalopathy 69 C4748988?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Medication Comparisons

Compare medications used to treat Developmental And Epileptic Encephalopathy 69 C4748988. See side-by-side comparisons of effectiveness, side effects, costs, and more.

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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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 26, 2026. · Read our editorial policy