Fat4 Related Neurodevelopmental Disorder Cn379217
A genetic neurodevelopmental disorder caused by changes in the FAT4 gene. It affects brain development and can cause developmental delays, intellectual disability, and other neurological symptoms. Treatment focuses on supportive therapies and early intervention.
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)Autism spectrum features
(neurologic)Microcephaly
(neurologic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
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
Early Intensive Motor Intervention
Structured physical therapy programs focusing on gross motor skills, balance, and coordination tailored to neurodevelopmental needs. Early intervention during critical developmental periods is emphasized.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Behavioral and Cognitive Interventions
Individualized behavioral therapy and cognitive support addressing developmental delays, social skills deficits, and emotional regulation challenges commonly associated with the disorder.
Additional treatment options
Occupational Therapy Services
Therapeutic interventions focused on fine motor skills, activities of daily living, sensory integration, and functional independence in home and school environments.
complementaryMultidisciplinary Developmental Monitoring
Regular assessments by developmental pediatricians, neurologists, and allied health professionals to track progress, adjust interventions, and screen for associated conditions.
monitoringStructured Educational Support
Individualized education plans and specialized educational interventions accommodating learning differences, attention difficulties, and motor challenges in academic settings.
lifestyleWhen 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.
What is Fat4 Related Neurodevelopmental Disorder Cn379217?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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