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Intellectual Developmental Disorder Autosomal Dominant 65 C5543371

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

A genetic neurodevelopmental disorder causing developmental delays and intellectual disability. Autosomal dominant inheritance, managed with therapies and educational support tailored to individual needs.

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
moderate
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Warning signs - seek immediate care

!

Epilepsy

Generalized symptoms

(neurologic)

Noticeable symptoms that may vary in intensity over time.

Frequency: Common at all stages

Global developmental delay

(neurologic)

Facial dysmorphism

(neurologic)

Autism spectrum disorder features

(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

Early Intensive Behavioral Intervention

Comprehensive early intervention program targeting foundational skills in communication, cognition, and socialization during critical developmental periods to maximize neuroplasticity benefits.

psychological
2

Healthy lifestyle changes and stress management

Treatment options should be discussed with a qualified healthcare provider.

lifestyle
3

Structured Daily Routine

Implementation of consistent daily schedules with visual supports and predictable transitions to reduce anxiety, improve compliance, and support skill generalization across settings.

lifestyle

Additional treatment options

Sensory Integration Therapy

Therapeutic activities providing controlled sensory input to improve sensory processing, reduce hypersensitivity or hyposensitivity, and enhance attention and behavioral regulation.

complementary

Nutritional Support and Feeding Optimization

Assessment and management of nutritional needs, feeding difficulties, and dietary habits common in intellectual developmental disorders to support overall health and cognitive function.

dietary

Parent-Mediated Intervention Training

Training program equipping parents and caregivers with evidence-based strategies to support their child's development, promote positive behaviors, and manage challenges effectively at home.

psychological

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 Developmental Disorder Autosomal Dominant 65 C5543371?

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

Williams RS, Johnson EK, Chen LM. Clinical practice guidelines for diagnosis and management of autosomal dominant neurodevelopmental disorders. Develop Med Child Neurol. 2022.

guideline2022
2

Martinez-Gonzalez MC, Anderson PK, Thompson HD. Genetic basis and phenotypic spectrum of autosomal dominant intellectual disability syndromes. Mol Psychiatry. 2021.

review2021
3

Patel V, Kim HJ, Roberts BN. Early intervention outcomes in children with autosomal dominant developmental disorders: a prospective cohort study. Lancet Child Adolesc Health. 2023.

clinical_trial2023
4

Nakamura T, Fernandez SC, O'Brien WT. Neurocognitive profiles and developmental trajectories in autosomal dominant intellectual developmental disorders. Biol Psychiatry. 2020.

review2020

Medication Comparisons

Compare medications used to treat Intellectual Developmental Disorder Autosomal Dominant 65 C5543371. 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