Neurodevelopmental Disorder With Spastic Quadriplegia And Brain Abnormalities With Or Without Seizures C4693816
A genetic condition affecting brain development, causing severe muscle stiffness and limited movement. Seizures may or may not occur. Treatment includes therapies to manage symptoms and support development.
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
Spastic quadriplegia
Seizures
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Brain abnormalities
(neurologic)Dysphagia
(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
Intensive Physical Therapy
Comprehensive physical therapy program focusing on improving motor function, preventing contractures, and enhancing mobility through targeted exercises and positioning techniques. Therapists work on strength, range of motion, and functional movement patterns.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Spasticity Management
Pharmacological management of spasticity using muscle relaxants such as baclofen or tizanidine to reduce muscle stiffness and improve comfort. Treatment is tailored based on response and side effect profile.
Additional treatment options
Orthopedic Intervention
Surgical procedures to correct musculoskeletal deformities, release contractures, and improve functional positioning when conservative measures fail. May include tendon lengthening or joint stabilization.
surgicalMultidisciplinary Monitoring
Regular follow-up with developmental pediatricians, neurologists, and orthopedists to monitor disease progression, adjust treatment plans, and screen for associated complications.
monitoringNeuropsychological Support
Cognitive and behavioral assessment and support services to address learning difficulties, behavioral challenges, and emotional well-being. Includes family counseling and educational support planning.
psychologicalWhen 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 Neurodevelopmental Disorder With Spastic Quadriplegia And Brain Abnormalities With Or Without Seizures C4693816?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
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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.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy