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Start free with EleplanBenign nocturnal alternating hemiplegia of childhood
ORPHA:209973Disease
What it is
Benign nocturnal alternating hemiplegia of childhood is a rare neurologic disease characterized by recurrent attacks of nocturnal screaming or crying followed or accompanied by unilateral or sometimes bilateral hemiplegia. Disorder is not associated with neurological or developmental impairments but may be associated with mild behavioral abnormalities.
Key facts
- Prevalence
- <1 / 1 000 000
- Age of onset
- Childhood, Infancy
- Inheritance
- Unknown
- Classified as
- Disease
Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.
ICD-10 codes
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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