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Start free with EleplanFRAXE intellectual disability
ORPHA:100973Disease
Also called Intellectual disability associated with fragile site FRAXE
What it is
A rare X-linked syndromic intellectual disability characterized by a variable clinical picture including developmental delay, mild to moderate intellectual disability, learning difficulties, communication deficits, and behavioral problems (such as aggression, attention deficit, hyperactivity, and autistic features). Personality disorder and psychotic behavior have also been reported.
Key facts
- Prevalence
- 1-9 / 1 000 000 (Europe)
- Age of onset
- Antenatal, Infancy, Neonatal
- Inheritance
- X-linked recessive
- 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.
Signs and symptoms
Common30–79%
18- Aggressive behavior
- Agitation
- Autistic behavior
- Clumsiness
- Compulsive behaviors
- Delayed speech and language development
- Epicanthus
- Hoarse voice
- Hyperactivity
- Impulsivity
- Intellectual disability
- Intrauterine growth retardation
- Prominent ear helix
- Prominent nasal bridge
- Recurrent hand flapping
- Short stature
- Specific learning disability
- Thick vermilion border
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Genes
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
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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