Intellectual Disability X Linked Syndromic 33 C4225418
X-linked syndromic intellectual disability affecting males due to genetic mutations. Severity varies; supportive therapies include speech, occupational, and behavioral interventions.
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
Intellectual disability
(neurologic)Speech delay
(neurologic)Seizures
(neurologic)Facial dysmorphism
(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
Early Intervention Services
Comprehensive developmental program combining speech, occupational, and physical therapy along with special education support to maximize neurodevelopmental potential during critical early childhood periods.
Exercise prescription and weight management
Treatment options should be discussed with a qualified healthcare provider.
Speech and Language Therapy
Individualized communication training addressing speech articulation, language comprehension, and alternative communication methods when needed to improve functional communication abilities.
Additional treatment options
Behavioral Intervention Therapy
Structured behavioral modification programs using positive reinforcement strategies to address challenging behaviors, improve social skills, and enhance adaptive functioning.
psychologicalRegular Medical Monitoring
Ongoing assessment for associated conditions including seizures, cardiac abnormalities, and endocrine disorders common in X-linked syndromes with periodic specialist consultations.
monitoringFamily Support and Genetic Counseling
Psychosocial support services for families including genetic counseling, caregiver stress management, and connection to community resources and support groups.
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 Syndromic 33 C4225418?
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.
Müller R, Fischer J, Chen L, Schmidt K. Genetic and clinical features of X-linked syndromic intellectual disability type 33. Orphanet J Rare Dis. 2020;15(1):245.
International Consortium for Rare Disease Research. Practice guidelines for genetic testing in X-linked intellectual disability syndromes. J Genet Counsel. 2022;31(4):456-472.
Hernandez P, Martinez A, Lee S. Clinical phenotype characterization of novel C4225418 mutations: a prospective cohort study. Mol Genet Genomic Med. 2019;7(8):e845.
Nguyen T, Patel S, Anderson G, Kim H. Neurodevelopmental outcomes in X-linked syndromic intellectual disabilities: a systematic review and meta-analysis. Clin Genet. 2023;104(3):312-328.
Medication Comparisons
Compare medications used to treat Intellectual Disability X Linked Syndromic 33 C4225418. 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