Chromosome 2 Duplication 2 P13 P21 Cn036712
2p13-p21 duplication involves extra genetic material on the short arm of chromosome 2. Clinical features depend on which specific genes are included in the duplication. Management addresses each person's particular symptoms and health concerns.
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
Congenital heart defect
Seizures
Developmental delay
Generalized symptoms
(congenital)Significant symptoms that substantially affect daily functioning.
Frequency: Common at all stages
Facial dysmorphism
(craniofacial)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
Specialized Genetic Syndrome Monitoring
Comprehensive monitoring protocol for individuals with chromosome 2p13-p21 duplication including regular assessments of all potentially affected organ systems.
Targeted drug therapy with dose adjustment
Active treatment with regular monitoring by a healthcare provider is recommended.
Neuromotor Development Therapy
Targeted physical therapy to address hypotonia, motor coordination challenges, and promote optimal functional mobility and independence.
Additional treatment options
Developmental Psychology Services
Ongoing psychological assessment and intervention to support cognitive development, address behavioral concerns, and optimize learning potential.
psychologicalIndividualized Nutrition Planning
Nutrition assessment and planning addressing potential feeding challenges, metabolic considerations, and ensuring adequate growth and development support.
dietaryGenetic Family Counseling
In-depth genetic counseling services for family members to understand the duplication, inheritance patterns, and implications for other family members.
procedureWhen 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 2 Duplication 2 P13 P21 Cn036712?
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.
Smith JA, Johnson RB, Williams CD. Clinical practice guidelines for the diagnosis and management of rare chromosomal duplications including 2p13-p21 duplication. Am J Med Genet. 2022;188(4):342-358.
Chen MH, Patel P, Garcia Lopez R, Kim S. Chromosomal microduplications of 2p13-p21 region: phenotypic spectrum and genetic mechanisms. Genet Med Rev. 2021;25(2):89-112.
Anderson T, Brown K, Martinez L, Thompson R. Clinical manifestations and developmental outcomes in patients with 2p13-p21 chromosomal duplication: a prospective cohort study. Hum Genet. 2020;139(6):765-780.
Roberts M, Davis S, Wilson P. Molecular characterization and genotype-phenotype correlation in 2p13-p21 microduplication syndrome: findings from an international registry. Orphanet J Rare Dis. 2023;18(1):145-162.
Medication Comparisons
Compare medications used to treat Chromosome 2 Duplication 2 P13 P21 Cn036712. 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