Q21.21
Partial atrioventricular septal defect
Clinical Classification Guidelines
Inclusion Terms
- Incomplete atrioventricular canal
- Incomplete atrioventricular septal defect
- Incomplete endocardial cushion defect
- Ostium primum atrial septal defect (type I) with separate atrioventricular valves
- Partial atrioventricular canal
- Partial endocardial cushion defect
Medical Intelligence & Overview
Partial atrioventricular septal defect (AVSD), also known as partial endocardial cushion defect or ostium primum atrial septal defect, is a congenital heart condition characterized by a hole in the septum that separates the upper chambers of the heart, the atria. This defect involves an incomplete formation of the heart's septum and the valves, which can lead to abnormal blood flow between the heart chambers. Recognizing and understanding this defect is essential for appropriate management and care.
Causes & Symptoms
Clinical Causes: Genetic factors and family history can increase the risk. Certain genetic syndromes, such as Down syndrome, are associated with this condition. Environmental factors during pregnancy, like maternal alcohol consumption or exposure to certain medications or infections, may contribute. Rarely, it can occur due to random developmental errors during fetal heart formation.
Key Symptoms: Frequent respiratory infections Shortness of breath, especially during activity Fatigue or tiredness with exertion Heart murmur detected during medical examination Swelling in the legs, ankles, or abdomen (less common in partial defects) Delayed growth or poor weight gain in infants
Diagnostic & Treatment
Diagnosis Path: Diagnosis typically involves a combination of physical examination and diagnostic tests:
Treatment Protocols: Management of partial atrioventricular septal defect depends on the size of the defect and associated symptoms:
Clinical Advice & FAQs
Billing Guidance
Is Q21.21 a billable ICD-10 code?
Yes, Q21.21 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report Q21.21?
Clinical documentation must specify the nature of Partial atrioventricular septal defect and any associated comorbidities for accurate reporting.
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