Skip to content

Bilateral Tonic Clonic Seizure With Focal Onset C0877017

Published: July 22, 2026Updated: August 25, 2026

Seizures that begin in one brain area and spread to both sides, causing muscle stiffening followed by jerking movements. Anticonvulsant medications are the primary treatment.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 2026Editorial policy

Key facts at a glance

ICD-10
G43.909
ICD-11
8A00.0
Body system
neurologic
Severity
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Focal onset seizure

!

Bilateral tonic-clonic seizure

!

Loss of consciousness

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Postictal confusion

(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

Anti-epileptic drug therapy

First-line pharmacological management using appropriate anti-epileptic medications to achieve seizure control and prevent recurrence.

medication
2

Behavioral and nutritional therapy

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Seizure trigger avoidance

Lifestyle modifications including sleep hygiene, stress management, and avoidance of known seizure precipitants.

lifestyle

Additional treatment options

Ketogenic diet therapy

High-fat, low-carbohydrate diet that may help reduce seizure frequency when medication alone is insufficient.

dietary

Vagus nerve stimulation

Implantable device delivering electrical stimulation to vagus nerve to reduce seizure frequency in refractory cases.

procedure

EEG and seizure monitoring

Continuous electroencephalographic monitoring to characterize seizure patterns and guide treatment optimization.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Bilateral Tonic Clonic Seizure With Focal Onset C0877017?

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 Bilateral Tonic Clonic Seizure With Focal Onset C0877017. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

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 25, 2026. · Read our editorial policy