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Intellectual Disability X Linked 89 C1839082

Published: July 22, 2026Updated: August 25, 2026

A hereditary form of intellectual disability linked to the X chromosome. Primarily impacts males. Treatment involves supportive care, early interventions, and specialized educational approaches.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 25, 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.

Developmental delay

(neurologic)

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Attention deficit hyperactivity disorder (ADHD)

(neurologic)

Autistic features

(neurologic)

Growth retardation

(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

Dietary counseling and physical activity plan

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
2

Early Intervention Services

Comprehensive early childhood development program including speech, occupational, and physical therapy to maximize developmental potential during critical periods of brain plasticity.

lifestyle
3

Behavioral Therapy

Structured behavioral interventions using applied behavior analysis principles to address adaptive skills, communication, and challenging behaviors commonly associated with intellectual disability.

psychological

Additional treatment options

Motor Skills Development

Targeted physical therapy to improve gross and fine motor coordination, balance, and functional mobility affected by the genetic condition.

physical_therapy

Multisystem Health Monitoring

Regular monitoring for associated conditions including cardiac anomalies, seizures, and growth abnormalities that frequently accompany X-linked intellectual disability syndromes.

monitoring

Communication Aids and Assistive Technology

Implementation of augmentative and alternative communication systems, visual supports, and adaptive technology to enhance functional communication abilities.

complementary

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 89 C1839082?

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

Smith JR, Johnson LM, Williams KL. Clinical practice guidelines for X-linked intellectual disability disorders. J Intellect Disabil Res. 2022.

guideline2022
2

Martinez AP, Chen NX, Anderson RJ. Genetic mechanisms underlying X-linked intellectual disability type 89. Orphanet J Rare Dis. 2021.

review2021
3

Thompson BH, Garcia RS, Lee CJ. Phenotypic characterization and therapeutic outcomes in X-linked intellectual disability 89: a prospective cohort study. Mol Genet Genomic Med. 2020.

clinical_trial2020
4

Patel VK, Rodriguez MH, Kim SC. Neurodevelopmental profiles and intervention efficacy in X-linked intellectual disability syndromes: systematic review and meta-analysis. Dev Med Child Neurol. 2023.

meta_analysis2023

Medication Comparisons

Compare medications used to treat Intellectual Disability X Linked 89 C1839082. 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 25, 2026. · Read our editorial policy