Migraine Familial Hemiplegic 1 C1832884
An inherited migraine disorder causing headaches with temporary weakness on one side of the body. It runs in families and requires careful trigger management. Treatment includes standard migraine medications.
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
Hemiparesis during migraine aura
Confusion during attacks
Persistent neurological deficit
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Visual aura symptoms
(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
Acute Attack Abortive Therapy
Triptans, dihydroergotamine, or anti-inflammatory agents may be used to terminate acute hemiplegic migraine attacks when appropriate. Response varies and treatment should be individualized based on attack characteristics and patient factors.
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Preventive Prophylactic Medications
Calcium channel blockers, antiepileptics, or other prophylactic agents reduce attack frequency and severity. Preventive treatment is indicated for frequent attacks or those causing significant disability.
Additional treatment options
Trigger Identification and Avoidance
Systematic tracking of potential triggers helps identify individual precipitants. Common triggers include specific foods, stress, hormonal changes, sleep disturbances, and environmental factors that can be modified.
lifestyleDietary Modification and Nutritional Approaches
Elimination diets may help identify food triggers while ensuring nutritional adequacy. Some patients benefit from specific supplementation including magnesium or riboflavin under medical supervision.
dietaryCognitive Behavioral Therapy and Stress Management
CBT techniques help develop coping strategies for chronic headache disorders and reduce attack-related anxiety. Biofeedback and relaxation training may complement pharmacologic management.
psychologicalWhen 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 Migraine Familial Hemiplegic 1 C1832884?
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