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X Linked Intellectual Disability Van Esch Type C4305072

Published: July 22, 2026Updated: August 20, 2026

A genetic form of intellectual disability caused by mutations on the X chromosome. Males are primarily affected. Treatment includes developmental support, speech therapy, and educational interventions.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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

Intellectual disability

(neurologic)

Developmental delay

(neurologic)

Hypotonia

(neurologic)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Cognitive rehabilitation services

Targeted cognitive rehabilitation focusing on executive function, working memory, and adaptive skills. Computer-based cognitive training may supplement traditional therapy approaches.

psychological
2

Medication management with follow-up care

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Symptom management pharmacotherapy

Medication management for associated symptoms such as attention difficulties, anxiety, or mood instability when behavioral interventions alone are insufficient. Regular monitoring of medication effectiveness and side effects.

medication

Additional treatment options

Gross motor development support

Physical therapy addressing hypotonia and motor coordination difficulties commonly associated with this condition. Focus on strength, balance, and functional movement patterns.

physical_therapy

Occupational support services

Occupational therapy to develop independence in activities of daily living, sensory integration where indicated, and vocational training for older adolescents and adults.

lifestyle

Family support and respite services

Access to family support groups, respite care services, and community resources to reduce caregiver burden and provide emotional support for families affected by this condition.

complementary

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.

Q

What is X Linked Intellectual Disability Van Esch Type C4305072?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Kochinke K, Zweier C, Nijhof B, et al. Systematic analysis of coding genes highlights major pathways and candidate genes in X-linked intellectual disability. Eur J Hum Genet. 2022.

guideline2022View source →
2

van Esch H, Jansen A. MED12-related X-linked intellectual disability: clinical and molecular aspects. Mol Syndromol. 2018.

review2018View source →
3

Ropers F, Wieczorek S, Simic K, et al. Phenotypic spectrum and genetic analysis in a cohort of patients with MED12 mutations. Clin Genet. 2020.

clinical_trial2020View source →
4

Schröder C, Hackmann A, Ropers HH, et al. Neurodevelopmental phenotypes in X-linked intellectual disability syndromes: a meta-analysis. Orphanet J Rare Dis. 2021.

meta_analysis2021View source →

Medication Comparisons

Compare medications used to treat X Linked Intellectual Disability Van Esch Type C4305072. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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