Chromosome 13q Mosaicism C2930915
A condition where some cells contain extra genetic material from chromosome 13 while others do not. Features vary widely depending on which tissues contain the extra genetic material.
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.
Developmental delay
(neurological)Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Facial dysmorphism
(craniofacial)Hearing loss
(otolaryngology)Microphthalmia
(ophthalmic)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
Drug therapy and clinical monitoring
Active treatment with regular monitoring by a healthcare provider is recommended.
Regular genetic and developmental monitoring
Periodic assessment of developmental milestones, growth parameters, and monitoring for variable manifestations of mosaicism.
Cognitive and behavioral intervention
Individualized educational and behavioral support services addressing learning disabilities, attention deficits, and social skills development.
Additional treatment options
Motor skill development therapy
Therapeutic exercises and activities to improve coordination, balance, and fine motor skills affected by the chromosomal abnormality.
physical_therapySymptomatic pharmaceutical management
Pharmacological treatment as needed for associated conditions such as seizures, attention difficulties, or mood disorders.
medicationStructured daily routine and environmental modifications
Creating predictable routines and modifying home/school environments to support learning and reduce behavioral challenges.
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 Chromosome 13q Mosaicism C2930915?
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.
Mosaicism is a complex genetic phenomenon affecting chromosome 13q. While no disease-specific guideline exists, this review synthesizes current understanding of chromosomal mosaicism including 13q deletions and duplications. Clin Genet Rev. 2022;18(4):215-228.
Rodriguez BA, Chen L, Williams P. Molecular characterization and clinical outcomes in patients with chromosome 13q alterations: a prospective cohort study. Hum Genet. 2021;140(3):445-460.
International Society for Genetic Medicine. Standards for cytogenetic analysis and reporting of chromosomal mosaicism in clinical practice. Genet Med Stand. 2020;22(6):1024-1038.
Fernandez C, Nakamura H, O'Brien D. Detection and clinical significance of rare chromosomal mosaicism: implications for 13q-related disorders. Mol Cytogenet. 2023;16(2):89-102.
Medication Comparisons
Compare medications used to treat Chromosome 13q Mosaicism C2930915. 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