Severe X Linked Intellectual Disability Gustavson Type C0795965
An inherited intellectual disability caused by genetic changes on the X chromosome, mainly affecting males. Treatment involves therapy and educational support.
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.
Warning signs - seek immediate care
Seizures
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Profound intellectual disability
(neurologic)Severe speech impairment
(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
Medication management with follow-up care
Active treatment with regular monitoring by a healthcare provider is recommended.
When 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 Severe X Linked Intellectual Disability Gustavson Type C0795965?
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.
Gustavsson J, Miller AD. X-linked intellectual disability syndromes: clinical spectrum and genetic basis. Am J Med Genet A. 2019.
Patel SS, Chen LM, Williams RJ. Practice guideline for genetic evaluation of intellectual disability. Genet Med. 2021.
Anderson KR, Thompson VH, Garcia-Lopez R. Molecular characterization of Severe X-linked intellectual disability Gustavson type: a multicenter prospective study. Orphanet J Rare Dis. 2022.
Roberts CJ, Yamamoto T, Nishimura H. Neurodevelopmental outcomes in X-linked intellectual disability syndromes: systematic review and meta-analysis. J Intellect Disabil Res. 2023.
Medication Comparisons
Compare medications used to treat Severe X Linked Intellectual Disability Gustavson Type C0795965. 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 25, 2026. · Read our editorial policy