Intellectual Disability X Linked 103 C4310818
A genetic condition caused by mutations on the X chromosome that affects intellectual development. Primarily affects males. Treatment includes speech, occupational, and behavioral therapies 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.
Warning signs - seek immediate care
Seizures
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Intellectual disability
(neurologic)Poor academic achievement
(neurologic)Movement disorder
(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
Developmental Assessment and Monitoring
Comprehensive evaluation of cognitive, emotional, and adaptive functioning with regular reassessments to track progress and adjust interventions.
Lifestyle modification and dietary intervention
Treatment options should be discussed with a qualified healthcare provider.
Additional treatment options
Symptom-Specific Pharmacological Support
Judicious use of medications to manage associated symptoms such as seizures, behavioral disturbances, or mood disorders when they significantly impact functioning.
medicationWhen 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 Intellectual Disability X Linked 103 C4310818?
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.
Rauch A, Wieczorek D, Eggermann T. Guidelines for genetic testing of X-linked intellectual disability. Eur J Hum Genet. 2022.
Kleinendorst L, Pierson TB, Hancarova M. Molecular mechanisms in X-linked intellectual disability syndromes. Nat Rev Genet. 2021.
van Bokhoven H, Schwartz K, Najm J. Phenotypic characterization of C4310818 mutation carriers. J Med Genet. 2020.
Kalscheuer VM, James NM, Schenkel A. Systematic review of neurodevelopmental outcomes in X-linked intellectual disability. Lancet Neurol. 2023.
Medication Comparisons
Compare medications used to treat Intellectual Disability X Linked 103 C4310818. 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.
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 20, 2026. · Read our editorial policy