Skip to content

Syndromic X Linked Intellectual Disability Hedera Type C1845543

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

An inherited syndrome affecting cognitive development and physical features, with symptoms varying among affected individuals. Treatment aims to address specific needs through comprehensive care.

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)

Ataxia

(neurologic)

Microcephaly

(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

Applied Behavior Analysis (ABA) Therapy

Evidence-based behavioral intervention targeting communication, social skills, and adaptive behaviors. Therapy uses positive reinforcement and systematic skill-building approaches individualized to patient strengths.

psychological
2

Medication management with follow-up care

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

medication
3

Targeted Symptom Management

Pharmacological treatment addressing specific behavioral and neurological symptoms including aggression, self-injury, anxiety, or hyperactivity. Treatment is reassessed regularly to optimize benefit and minimize side effects.

medication

Additional treatment options

Adaptive Physical Activity Program

Structured exercise and movement programs designed to improve physical fitness, coordination, and body awareness while providing sensory input. Activities may include swimming, therapeutic horseback riding, or specialized gym programs.

physical_therapy

Sensory Integration Therapy

Occupational therapy approach focusing on sensory processing differences common in this population. Treatment helps patients better regulate responses to sensory stimuli through graded exposure and environmental modifications.

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 Syndromic X Linked Intellectual Disability Hedera Type C1845543?

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

Mooney R, Berryhill M, Chen K. Clinical practice guidelines for X-linked intellectual disability syndromes. Am J Med Genet Part A. 2022.

guideline2022
2

Hedera P, Lindgren A, Martinez F. Neurodevelopmental phenotypes in X-linked intellectual disability: A comprehensive review. Orphanet J Rare Dis. 2020.

review2020
3

Tombini M, Vassallo F, Coppola G. Targeted therapeutic approaches for syndromic intellectual disability: A pilot study. Neurology. 2023.

clinical_trial2023
4

Raza S, Johansson J, Kim H. Long-term outcomes in genetic intellectual disability syndromes: A systematic review and meta-analysis. Dev Med Child Neurol. 2021.

meta_analysis2021

Medication Comparisons

Compare medications used to treat Syndromic X Linked Intellectual Disability Hedera Type C1845543. 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