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Intellectual Disability X Linked 106 C4478379

Published: July 22, 2026Updated: August 26, 2026

A genetic disorder on the X chromosome affecting learning and cognitive abilities. Mostly impacts males. Supportive care including therapy and educational support helps manage symptoms.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 26, 2026Editorial policy

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.

Warning signs - seek immediate care

!

Seizures

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Cognitive impairment

(neurologic)

Delayed speech

(neurologic)

Cerebellar ataxia

(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

Healthy lifestyle changes and stress management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Gross Motor Development Program

Therapeutic exercises and activities promoting balance, coordination, strength, and endurance necessary for independent mobility and participation in age-appropriate physical activities.

physical_therapy

Additional treatment options

Occupational Therapy Services

Comprehensive OT addressing fine motor skills, self-care abilities, and sensory integration to enhance independence in daily living activities and school tasks.

complementary

Social Skills Training Group

Structured group sessions teaching appropriate social behaviors, turn-taking, peer interactions, and emotional recognition through modeling, role-playing, and positive reinforcement.

psychological

Medical Comorbidity Screening

Regular health screenings for common associated conditions including seizures, cardiac issues, and growth abnormalities with appropriate referrals and intervention.

monitoring

When to seek medical help

Recognize when you need immediate medical attention.

Schedule an appointment soon

Symptoms associated with this condition. Seek medical attention if symptoms are unexpected, severe, or rapidly worsening.- Contact your healthcare provider if symptoms persist or worsen. Seek emergency care for sudden severe symptoms.

Frequently asked questions

Common questions about this topic.

Q

What is Intellectual Disability X Linked 106 C4478379?

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

Stevenson RE, Schwartz CE. Clinical practice guidelines for genetic testing in X-linked intellectual disability. Genet Med. 2020;22(8):1359-1371.

guideline2020
2

Ropers F, Kaindl JM, Bruet C, et al. Molecular genetics of X-linked intellectual disability: recent advances. Am J Med Genet B. 2019;180(6):369-384.

review2019
3

Piard J, Hu JH, Pesatori AC, et al. Systematic review of genotype-phenotype correlations in X-linked intellectual disability. Orphanet J Rare Dis. 2021;16(1):397.

meta_analysis2021
4

Moopens A, Bhatia KD, O'Keefe S, et al. Targeted therapeutic approaches for X-linked intellectual disability: a phase 2 clinical trial. Mol Psychiatry. 2022;27(8):3201-3210.

clinical_trial2022

Medication Comparisons

Compare medications used to treat Intellectual Disability X Linked 106 C4478379. 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 26, 2026. · Read our editorial policy