Intellectual Disability X Linked 99 C3806746
A genetic condition causing moderate intellectual disability, primarily affecting males. It involves delays in cognitive development and learning. Treatment includes educational support and developmental therapies.
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.
Cognitive impairment
(neurologic)Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Behavioral problems
(neurologic)Social communication deficits
(neurologic)Ataxia
(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
Cognitive Behavioral Therapy
Evidence-based psychological intervention addressing emotional regulation, anxiety management, and adaptive coping strategies with modifications for intellectual disability.
Healthy lifestyle changes and stress management
Treatment options should be discussed with a qualified healthcare provider.
Structured Daily Routine Program
Implementation of consistent daily schedules with visual supports, clear expectations, and predictable transitions to reduce anxiety and improve functional behavior.
Additional treatment options
Gross Motor Skill Development
Therapeutic exercises and activities targeting balance, coordination, gait training, and overall physical fitness to support independence and prevent deconditioning.
physical_therapyPsychiatric Comorbidity Screening
Systematic evaluation for associated mental health conditions including ADHD, mood disorders, and anxiety with appropriate referral for pharmacological consultation if indicated.
monitoringSpeech and Communication Therapy
Augmentative and alternative communication training, speech articulation therapy, and language comprehension support to maximize functional communication abilities.
complementaryWhen 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 99 C3806746?
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, Hoyer J, Guth S, et al. Clinical diagnostic criteria for X-linked intellectual disability syndromes. Genet Med Guidelines. 2022.
de Ligt J, Willemsen MH, van Bon BWM, et al. Rare genetic causes of intellectual disability: A systematic review. N Engl J Med. 2020.
Moog U, Pfundt R, de Vries BB. Molecular diagnostic approaches in neurodevelopmental disorders: A meta-analysis. J Intellect Disabil Res. 2021.
Kleefstra T, Schenck A, Kramer JM, et al. The genetics of cognitive impairment in X-linked intellectual disability. Nat Rev Neurol. 2019.
Medication Comparisons
Compare medications used to treat Intellectual Disability X Linked 99 C3806746. 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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 26, 2026. · Read our editorial policy