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Intellectual Developmental Disorder Autosomal Recessive 75 With Neuropsychiatric Features And Variant Lissencephaly C5676961

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

An X-linked condition causing below-average cognitive ability alongside insufficient hormone production by the pituitary gland. This affects growth, metabolism, and development. Hormone replacement therapy and developmental support form the basis of care.

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
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

Global developmental delay

(neurologic)

Autistic features

(neurologic)

Cortical visual impairment

(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

Anticonvulsant therapy

Seizure management using appropriate anticonvulsant medications based on seizure type. EEG monitoring helps guide medication selection and assess treatment response.

medication
2

Pharmacological management with first-line agents

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

medication
3

Neurodevelopmental therapy program

Early intervention physical and occupational therapy to address motor delays, muscle tone abnormalities, and promote functional development within individual capability.

physical_therapy

Additional treatment options

Behavioral and developmental interventions

Structured behavioral approaches and developmental support targeting communication, social skills, and adaptive functioning. May include applied behavior analysis principles.

psychological

Neurodevelopmental and seizure surveillance

Regular assessment of developmental progress, cognitive function, and seizure control with periodic neuroimaging to monitor for structural changes.

monitoring

Supportive care and family education

Comprehensive family education regarding condition management, prognosis, and access to support services. Genetic counseling for family planning and recurrence risk discussion.

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 Intellectual Developmental Disorder Autosomal Recessive 75 With Neuropsychiatric Features And Variant Lissencephaly C5676961?

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

general

Medication Comparisons

Compare medications used to treat Intellectual Developmental Disorder Autosomal Recessive 75 With Neuropsychiatric Features And Variant Lissencephaly C5676961. 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