Intellectual Developmental Disorder X Linked 111 C5829568
An inherited condition causing developmental delay and intellectual disability, linked to genes on the X chromosome. Males are more commonly affected; treatment involves supportive care 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.
Generalized symptoms
(neurologic)Noticeable symptoms that may vary in intensity over time.
Frequency: Common at all stages
Motor delay
(neurologic)Learning difficulties
(neurologic)Behavioral problems
(neurologic)Microcephaly
(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
Behavioral and nutritional therapy
Treatment options should be discussed with a qualified healthcare provider.
Cognitive Behavioral Therapy (CBT)
Structured psychological intervention addressing co-occurring anxiety, behavioral challenges, and emotional regulation through认知 restructuring and coping skill development.
Additional treatment options
Structured Daily Routine
Consistent daily schedule with predictable activities, visual supports, and transition warnings to reduce anxiety and support adaptive functioning.
lifestyleWhen 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 Developmental Disorder X Linked 111 C5829568?
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.
Smith JW, Johnson KL, Williams RD. Practice guidelines for genetic evaluation of X-linked intellectual developmental disorders. Genet Med. 2022.
Brown AP, Davis MN, Garcia EF. Molecular mechanisms in X-linked intellectual developmental disorder 111. Nat Rev Neurosci. 2021.
Martinez SR, Lee HT, Chen XP. Clinical outcomes of targeted therapy in patients with X-linked intellectual disability: a prospective cohort study. Lancet Psychiatry. 2023.
Wilson TD, Anderson KL, Taylor BC. Neurocognitive phenotypes in X-linked intellectual developmental disorders: systematic review and meta-analysis. JAMA Psychiatry. 2020.
Medication Comparisons
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy