Skip to content

Joubert Syndrome 30 C4539937

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

A rare genetic disorder where the brain fails to develop normally, causing severe developmental delays and coordination problems. Treatment is supportive and focuses on maximizing function and quality of life.

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
severe
Chronic
true

Signs and symptoms

Common signs and symptoms that may indicate this condition.

Cerebellar vermis hypoplasia

(neurologic)

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Ataxia

(neurologic)

Hypotonia

(neurologic)

Oculomotor apraxia

(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

Multisystem Screening Protocol

Comprehensive screening for associated anomalies including retinal dystrophy, kidney disease, and liver fibrosis through regular ophthalmologic, renal, and hepatic assessments.

monitoring
2

Pharmacological management with first-line agents

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

medication
3

Adaptive Living Skills Training

Structured programs to develop independence in daily living activities, including self-care, communication, and adaptive skills tailored to individual capabilities.

lifestyle

Additional treatment options

Balance and Coordination Rehabilitation

Specialized vestibular and cerebellar rehabilitation therapy to improve postural stability, gait training, and fine motor coordination.

physical_therapy

Feeding and Swallowing Intervention

Evaluation and treatment of feeding difficulties and dysphagia through specialized speech-language pathology intervention and dietary modifications as needed.

procedure

Family Support and Resource Coordination

Connection to support groups, resources, and family services to address the complex needs of caring for an individual with Joubert syndrome.

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 Joubert Syndrome 30 C4539937?

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 Joubert Syndrome 30 C4539937. 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