Monosomy 9q22 3 C3711390
A rare chromosomal deletion where part of chromosome 9 is missing, affecting development and organ formation. Severity varies; management focuses on symptom treatment and developmental support.
Key facts at a glance
- ICD-10
- Q89.9
- ICD-11
- LA00.0
- Body system
- congenital
- Severity
- severe
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Warning signs - seek immediate care
Seizures
Developmental delay
(neurological)Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Craniosynostosis
(musculoskeletal)Intellectual disability
(neurological)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
Oncogenomic Surveillance Program
Enhanced monitoring for tumor predisposition associated with 9q22.3 deletions, including regular skin examinations and neuroimaging as clinically indicated for potential growths.
Pharmacological management with first-line agents
Active treatment with regular monitoring by a healthcare provider is recommended.
Endocrine and Growth Assessment
Comprehensive endocrine evaluation including growth hormone studies, thyroid function, and puberty assessment with appropriate intervention for deficiencies.
Additional treatment options
Corrective Surgical Interventions
Surgical management of structural abnormalities including craniofacial, skeletal, or visceral anomalies identified through diagnostic imaging.
surgicalNutritional Support and Feeding Optimization
Nutritional assessment and intervention for feeding difficulties, growth failure, or gastrointestinal issues common with this chromosomal region deletion.
dietaryFamily Support and Resource Coordination
Connection to support organizations, respite care services, and family support programs designed for families affected by rare chromosomal conditions.
complementaryWhen 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 Monosomy 9q22 3 C3711390?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalMedication Comparisons
Compare medications used to treat Monosomy 9q22 3 C3711390. 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