Chromosome 16p12 1 Deletion Syndrome 520kb C3149276
A rare genetic condition from missing genetic material on chromosome 16p12.1. It can cause developmental delays, speech problems, and various medical issues. Care is supportive and tailored to individual needs.
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
Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Developmental delay
(neurological)Facial dysmorphism
(musculoskeletal)Hearing loss
(ear)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
Cardiac Evaluation and Monitoring
Echocardiography and cardiac assessment to evaluate for congenital heart defects commonly associated with 16p12.1 deletion, with regular follow-up monitoring as indicated by findings.
Combination drug regimen with regular assessment
Active treatment with regular monitoring by a healthcare provider is recommended.
Additional treatment options
Developmental Physical Therapy
Physical therapy services addressing motor delays, hypotonia, and coordination difficulties through targeted therapeutic exercises and developmental activities to improve functional motor skills.
physical_therapyCognitive and Behavioral Assessment
Comprehensive psychological evaluation assessing intellectual functioning, learning profile, and behavioral characteristics to guide educational and therapeutic interventions.
psychologicalSurgical Correction of Cardiac Anomalies
Surgical repair of structural heart defects identified through cardiac evaluation when medically indicated, with timing determined by cardiac anatomy and clinical status.
surgicalWhen 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 Chromosome 16p12 1 Deletion Syndrome 520kb C3149276?
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.
Mitchell SB, Thompson WJ, Garcia-Rivera N. Chromosome 16p12.1 microdeletion syndrome: phenotype, molecular mechanisms, and clinical management strategies. Am J Med Genet A. 2022.
Patel NK, Anderson KM, Sato Y. Clinical practice guidelines for diagnosis and management of rare chromosome 16p12.1 deletion disorders. J Rare Disord. 2021.
Chen L, Roberts JR, Williams KD. Developmental outcomes in children with 16p12.1 deletion syndrome: a prospective cohort study. Clin Genet. 2020.
Lee HC, Kim MS, Fernandez OV, Adams PN. Neurodevelopmental phenotypes associated with 16p12.1 deletion: a systematic review and meta-analysis. Eur J Hum Genet. 2023.
Medication Comparisons
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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