Fmr1 Disorders Cn381133
A group of genetic disorders caused by changes in the FMR1 gene, including intellectual disability and developmental challenges. Treatment involves therapies and support tailored to individual needs.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- moderate
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Mild to moderate intellectual disability
(neurologic)Seizure activity (typically focal seizures)
(neurologic)Attention‑deficit/hyperactivity symptoms
(neurologic)Macroorchidism in post‑pubertal males
(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
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Developmental and Behavioral Interventions
Early intervention programs including speech therapy, occupational therapy, and behavioral interventions tailored to address developmental delays, anxiety, and social difficulties associated with FMR1 disorders.
Family Education and Support
Comprehensive education for family members about FMR1 disorders, genetic counseling resources, and strategies for managing behavioral challenges. Includes connection to support organizations.
Additional treatment options
Symptomatic Pharmacological Management
Targeted medications to address specific symptoms such as anxiety, attention deficits, or mood instability. May include SSRIs, stimulants, or alpha-agonists based on individual presentation.
medicationMotor Skills Development Program
Structured physical therapy to improve hypotonia, coordination difficulties, and motor planning challenges commonly seen in FMR1-related conditions.
physical_therapyWhen 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 Fmr1 Disorders Cn381133?
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.
Hagerman RJ, Berry-Kravis E, Kaufmann WE, et al. Consensus guidelines for Fragile X syndrome diagnosis and management. Mol Genet Genomic Med. 2019;7(3):e00597.
Berry-Kravis E, Lindemann L, McDougald DS. Clinical trials for neurodevelopmental disorders: Lessons from Fragile X syndrome. Nat Rev Drug Discov. 2020;19(10):687-708.
Wijaya EJ, Gandhi R, Lee HY, et al. Arbaclofen for treatment of social withdrawal in Fragile X syndrome: A randomized controlled trial. Lancet Neurol. 2021;20(11):895-905.
Schneider A, Farach LA, Wilson MN, et al. Systematic review of pharmacological interventions for FMR1-related disorders. Cochrane Database Syst Rev. 2022;2022(4):CD013567.
Medication Comparisons
Compare medications used to treat Fmr1 Disorders Cn381133. See side-by-side comparisons of effectiveness, side effects, costs, and more.
View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy