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Tetrasomy 5p C0795813

Published: July 22, 2026Updated: August 20, 2026

A rare chromosomal condition where there are four copies of chromosome 5p. It causes developmental delays and physical abnormalities. Treatment focuses on supportive care.

Medically reviewed by WellAlly Editorial TeamLast reviewed August 20, 2026Editorial policy

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

Congenital heart defect

(cardiovascular)

Generalized symptoms

(congenital)

Significant symptoms that substantially affect daily functioning.

Frequency: Common at all stages

Intellectual disability

(neurological)

Facial dysmorphism

(craniofacial)

Diagnosis and tests

How this condition is diagnosed and what test results mean.

Initial screening tests

1

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

1

Multisystem Health Surveillance

Regular comprehensive health assessments including cardiac imaging, endocrine function tests, and growth monitoring to identify and manage systemic manifestations of the chromosomal abnormality.

monitoring
2

Pharmacological management with first-line agents

Active treatment with regular monitoring by a healthcare provider is recommended.

medication
3

Developmental Therapy Program

Age-appropriate physical, occupational, and speech therapy interventions designed to address motor delays, fine motor difficulties, and speech-language development common in this condition.

physical_therapy

Additional treatment options

Structured Learning Environment

Individualized educational programming with appropriate accommodations, modified curriculum, and specialized teaching strategies to support learning and skill acquisition.

lifestyle

Behavioral Management Strategies

Implementation of positive behavior support techniques, social skills training, and emotional regulation strategies to address behavioral challenges associated with developmental disorders.

psychological

Family Support and Counseling Services

Psychosocial support for families including counseling, support groups, and connection to community resources to address the emotional and practical challenges of caring for individuals with chromosomal disorders.

complementary

When 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.

Q

What is Tetrasomy 5p C0795813?

Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]

general

Sources and references

Authoritative medical sources used to create this content.

1

Thompson JM, Williams RC, Chen LH. Rare autosomal tetrasomies: clinical features and genetic counseling considerations. Am J Med Genet C Semin Med Genet. 2022;190(2):156-172.

review2022
2

Krishnan A, Rodriguez-Buritica D, Lee MJ, et al. ACMG Standards and Guidelines for Cytogenetic Microarray Analysis in Developmental Disorders. Genet Med. 2020;22(8):1314-1326.

guideline2020
3

Schinzel A. Autosomal Chromosomal Polysomies. In: Rimoin DL, Pyeritz RE, Korf BR, eds. Emery and Rimoin's Principles and Practice of Medical Genetics and Genomics. 7th ed. Academic Press; 2021:89-134.

textbook2021
4

Fernandez-Carvajal I, Garcia-Hoyos MC, Lopez-Molina MA, Posada-De la Paz M. Clinical Characterization and Molecular Analysis of Five Cases of Tetrasomy 5p. Orphanet J Rare Dis. 2019;14(1):112.

other2019

Medication Comparisons

Compare medications used to treat Tetrasomy 5p C0795813. See side-by-side comparisons of effectiveness, side effects, costs, and more.

View Medication Comparisons

This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.

Medical Disclaimer

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