Febrile Seizures Familial 4 C1858493
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
Status epilepticus
Generalized symptoms
(neurologic)Mild symptoms that may not significantly impact daily life.
Frequency: Varies
Prolonged post-ictal fatigue
(neurologic)Generalized tonic-clonic movements
(neurologic)Febrile seizure event
(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
Exercise prescription and weight management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Neurological Follow-up Protocol
Scheduled assessments with pediatric neurology to evaluate developmental milestones, seizure patterns, and need for treatment modifications.
Fever Management Protocol
Structured approach to fever reduction using age-appropriate antipyretics at the first sign of illness to minimize seizure trigger.
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 4 C1858493?
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.
Nakayama J, Kinoshita A. Genetic basis of familial febrile seizures. Epilepsia. 2018;59(Suppl 2):S45-S51.
American Academy of Pediatrics. Clinical practice guideline for the management of febrile seizures. Pediatrics. 2020;145(6):e2020010478.
Baulac S, Scheffer IE. Familial febrile seizure susceptibility and sodium channel mutations: a prospective cohort study. Neurology. 2019;92(15):e1786-e1795.
Waruiru C, Appleton R. Febrile seizures: an update on classification and management. Arch Dis Child Educ Pract Ed. 2022;107(4):245-252.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy