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Joubert Syndrome 26 C4084843

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

A rare genetic brain development disorder causing developmental delays, movement problems, and sometimes kidney or liver involvement. Management focuses on supportive therapies and monitoring for related health issues.

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.

Developmental delay

(neurologic)

Generalized symptoms

(neurologic)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Cerebellar ataxia

(neurologic)

Episodic hyperventilation

(neurologic)

Renal agenesis

(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

Comprehensive Organ System Surveillance

Systematic evaluation and tracking of renal function, liver involvement, and ocular abnormalities through specialty consultations and laboratory monitoring. Early detection of polycystic kidney disease or hepatic fibrosis allows timely intervention.

monitoring
2

Pharmacological management with first-line agents

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

medication
3

Gross Motor Development Program

Specialized therapeutic interventions addressing ataxia, muscular hypotonia, and motor planning difficulties through progressive balance training, strength building, and functional movement practice tailored to individual capability levels.

physical_therapy

Additional treatment options

Strabismus and Ocular Surgery

Corrective eye muscle surgery to address the characteristic eye movement abnormalities and strabismus seen in Joubert Syndrome, improving visual function and reducing secondary complications from abnormal binocular vision.

surgical

Polysomnography and Sleep Disorder Management

Diagnostic sleep studies to evaluate for central and obstructive apnea episodes, followed by appropriate intervention which may include positive airway pressure therapy or surgical tonsillectomy for airway obstruction.

procedure

Occupational Therapy for Daily Living Skills

Functional skill training for self-care activities including feeding, dressing, and hygiene, with adaptive equipment recommendations and environmental modifications to maximize independence in daily living.

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 26 C4084843?

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 26 C4084843. 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