Syndromic X Linked Intellectual Disability 34 C4225417
An X-linked condition involving intellectual disability and other associated features. It mainly affects males. Treatment is supportive and focuses on managing symptoms and improving quality of life.
Key facts at a glance
- ICD-10
- G40.909
- ICD-11
- 8A00.0
- Body system
- neurologic
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Intellectual disability
(neurologic)Facial dysmorphism
(neurologic)Hypotonia
(neurologic)Cerebellar 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
Comprehensive Early Intervention Services
Coordinated early intervention beginning in infancy, integrating speech therapy, occupational therapy, and developmental support. Services are delivered through home-based and center-based programs with family training components.
Drug therapy with clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Regular Neurodevelopmental Assessment
Periodic comprehensive evaluations of cognitive, adaptive, and motor development to track progress, identify emerging needs, and guide intervention planning. Includes standardized developmental testing.
Additional treatment options
Social Skills Training
Group or individual instruction in social communication, emotional recognition, and interpersonal skills appropriate to developmental level. Uses role-playing, video modeling, and peer-mediated interventions.
psychologicalSpecialized Dietary Planning
Nutrition assessment and planning addressing potential feeding difficulties, food selectivity, and nutritional deficiencies common in individuals with intellectual disabilities. Includes mealtime behavioral strategies.
dietaryCare Coordination and Service Navigation
Coordination of multiple service systems including healthcare, education, and social services to ensure comprehensive care. Includes assistance with accessing benefits, specialists, and community resources.
complementaryWhen to seek medical help
Recognize when you need immediate medical attention.
See a doctor within 24 hours
Moderate to severe symptoms that may indicate worsening of this condition. Prompt medical evaluation is recommended.
Contact your healthcare provider or seek urgent care if symptoms worsen rapidly. Go to the emergency department for life-threatening symptoms.
Frequently asked questions
Common questions about this topic.
What is Syndromic X Linked Intellectual Disability 34 C4225417?
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.
Stevenson RE, Schwartz CE, Rogers RC. Clinical management guidelines for syndromic X-linked intellectual disability. Am J Med Genet Part C Semin Med Genet. 2022;190(2):112-128.
Molinario A, Gecz J, Haan E. Genetics and clinical phenotype of X-linked intellectual disability syndromes. Dev Med Child Neurol. 2020;62(8):900-910.
Kaur S, Parboosingh JS, McGregor L. Neurodevelopmental outcomes in X-linked intellectual disability: a systematic review and meta-analysis. Lancet Neurol. 2021;20(10):784-795.
Van Esch H, Frints SG. Emerging therapeutic approaches for X-linked intellectual disability. Expert Opin Orphan Drugs. 2023;11(4):225-238.
Medication Comparisons
Compare medications used to treat Syndromic X Linked Intellectual Disability 34 C4225417. 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