📋Overview

This condition occurs when a hole forms in the interventricular septum, the muscular wall dividing the left and right ventricles. This opening allows oxygenated blood to flow from the left ventricle back into the right ventricle instead of out to the rest of the body.

The size and location of the defect can vary significantly, which influences how much blood shunts between the chambers and the degree of impact on the heart and lungs. It is frequently identified as one of the most common heart defects present at birth.

🛡️ Educational information only

This content is provided for general health education and awareness and is based on publicly available medical information. It is not intended to replace professional medical advice, diagnosis, or treatment, and should not be used to make healthcare decisions. Always seek the guidance of a qualified healthcare professional regarding any medical condition, medication, supplement, or procedure.

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Medical codes (for reference)

UMLS CUI: C0018818
ICD-10-CM
Q21.0
MeSH
D006345
SNOMED CT (US)
30288003253549006768552007

Codes are provided for reference and interoperability. They are not a diagnosis.

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