Transitional atrioventricular septal defect
ICD-10 Q21.22 is a billable code used to indicate a diagnosis of transitional atrioventricular septal defect.
Transitional atrioventricular septal defect (AVSD) is a complex congenital heart defect characterized by a combination of atrioventricular septal defect and a single common atrioventricular valve. This condition results in a mixing of oxygenated and deoxygenated blood due to the presence of a defect in the septum that separates the atria and ventricles. The transitional form typically presents with a partial defect, where the atrioventricular valves are not fully formed, leading to varying degrees of obstruction and regurgitation. Patients may exhibit symptoms such as cyanosis, heart failure, and failure to thrive. Diagnosis is often made through echocardiography, which reveals the structural anomalies. Surgical intervention is usually required to correct the defect and improve hemodynamics, and the timing of surgery is critical for optimal outcomes. Long-term follow-up is essential to monitor for potential complications, including arrhythmias and residual defects.
Detailed clinical notes including growth parameters, symptoms, and developmental milestones.
Infants presenting with heart failure symptoms, children with exercise intolerance, and pre-operative assessments.
Consideration of age-related anatomical changes and developmental implications.
Family history of congenital heart defects, genetic testing results, and syndromic associations.
Genetic counseling for families with a history of congenital heart disease and syndromic presentations.
Awareness of chromosomal abnormalities that may co-occur with AVSD, such as Down syndrome.
Used during surgical intervention for transitional AVSD.
Operative report detailing the procedure and findings.
Pediatric cardiology and cardiothoracic surgery documentation standards.
Transitional AVSD involves a partial defect with a common atrioventricular valve, while complete AVSD has a fully formed common valve and a complete defect in the septum, leading to more severe hemodynamic consequences.
