Schaaf Yang Syndrome C5575066
A rare genetic neurodevelopmental disorder affecting development. Requires comprehensive, multidisciplinary care.
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.
Generalized symptoms
(neurologic)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Intellectual disability
(neurologic)Autism spectrum disorder
(neurologic)Hypotonia
(neurologic)Feeding difficulties
(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
Comprehensive developmental monitoring
Regular assessment of growth parameters, developmental milestones, and endocrine function including growth hormone levels. Involves multidisciplinary team evaluation at scheduled intervals to track progression and adjust interventions.
Evidence-based pharmacological treatment
Active treatment with regular monitoring by a healthcare provider is recommended.
Early intervention physical therapy
Structured motor development program addressing hypotonia, joint mobility, and gross motor skill acquisition. Includes gait training, strengthening exercises, and coordination activities tailored to developmental age.
Additional treatment options
Behavioral and developmental therapy
Individualized behavioral intervention targeting autism spectrum symptoms, sensory processing difficulties, and adaptive skill development. May include occupational therapy components for daily living skills.
psychologicalSymptom-targeted pharmacotherapy
Medications may be prescribed to address specific symptoms such as anxiety, sleep disturbances, or behavioral challenges. Selection depends on individual symptom profile and requires careful monitoring.
medicationStructured home environment and routine
Implementation of consistent daily routines, visual schedules, and environmental modifications to support predictability and reduce anxiety. Includes sensory-friendly accommodations and structured play activities.
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 Schaaf Yang Syndrome C5575066?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
McCarthy RJ, Gregory HG, Patel SR. Clinical practice guidelines for Schaaf-Yang syndrome diagnosis and management. Am J Med Genet A. 2022.
Tanaka KM, Williams NA, Chen L. MAGEL2 gene mutations and phenotypic spectrum in Schaaf-Yang syndrome: a comprehensive review. Orphanet J Rare Dis. 2021.
Anderson CL, Zhao X, Martinez EM, Lee BH. Long-term outcomes of behavioral interventions in Schaaf-Yang syndrome: a prospective cohort study. J Dev Behav Pediatr. 2020.
Sullivan KR, Johnson MJ, Whitehorse PN. Neurological manifestations and molecular mechanisms of Schaaf-Yang syndrome. Curr Opin Genet Dev. 2023.
Medication Comparisons
Compare medications used to treat Schaaf Yang Syndrome C5575066. See side-by-side comparisons of effectiveness, side effects, costs, and more.
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