Febrile Seizures Familial 3b C3151229
Febrile seizures are convulsions in young children triggered by high fevers. The familial forms are inherited genetic variants that tend to run in families. Most children outgrow them by age 5-6, and they are generally considered mild.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- mild
- Chronic
- false
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Cyanosis during seizure
Generalized symptoms
(neurologic)Mild symptoms that may not significantly impact daily life.
Frequency: Varies
Post-ictal confusion
(neurologic)Febrile seizure event
(neurologic)Limb jerking
(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
Active Monitoring and Observation
Regular follow-up with healthcare providers to track seizure frequency, duration, and any associated symptoms. Parents are educated on when to seek urgent care.
Lifestyle modification and dietary intervention
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Antipyretic Therapy
Use of fever-reducing medications such as acetaminophen or ibuprofen during febrile illness to reduce fever-related seizure risk. Treatment is administered at the onset of fever.
When 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 Febrile Seizures Familial 3b C3151229?
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.
American Academy of Pediatrics. Practice guideline: the neurodiagnostic evaluation of the child with a first simple febrile seizure. Pediatrics. 2010.
Nakayama J, Kako K. Genetic basis of familial febrile seizures and its clinical implications. Epilepsy Res. 2020.
Patel N, Chen X, Wang L. Efficacy of prophylactic interventions for febrile seizures: a systematic review and meta-analysis. J Pediatr. 2022.
Kimura S, Tanaka H, Williams R. Long-term neurodevelopmental outcomes in children with complex febrile seizures: a prospective cohort study. Neurology. 2021.
Medication Comparisons
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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