2025 ICD-10-CM code Q21.2
(Active) Effective Date: N/A Revision Date: N/A Congenital malformations, deformations and chromosomal abnormalities - Congenital malformations of the circulatory system Q00-Q99 Feed
Atrioventricular septal defect. Also known as atrioventricular canal defect, endocardial cushion defect, or ostium primum atrial septal defect (type I).
Medical necessity is established by the presence of the congenital heart defect and the associated symptoms or complications.Surgical repair is often medically necessary to prevent long-term complications.
Diagnosis and management of this condition are typically handled by pediatric cardiologists, and often require surgical intervention.
In simple words: This is a birth defect affecting the heart.There's a hole in the wall separating the top and bottom chambers, which may also affect the heart valves.This condition is present from birth.
Atrioventricular septal defect is a congenital heart defect where there is a hole in the wall (septum) that separates the atria and ventricles of the heart.This defect involves both the atrial and ventricular septa and often includes abnormalities of the atrioventricular valves.
Example 1: A newborn infant is diagnosed with a heart murmur. An echocardiogram reveals an atrioventricular septal defect., A child experiences recurrent respiratory infections and failure to thrive. Further investigation reveals an undiagnosed atrioventricular septal defect., A fetal ultrasound detects a heart abnormality, which is later confirmed as an atrioventricular septal defect after birth.
Echocardiogram findings, cardiac catheterization reports, and operative reports if surgery is performed. Documentation should specify the type and severity of the defect.
** Excludes1: acquired cardiac septal defect (I51.0) and inborn errors of metabolism (E70-E88).This code is not for use on maternal records.Consider associated conditions like Down syndrome.
- Payment Status: Valid, but not specific enough for reimbursement. More specific codes exist.
- Specialties:Pediatric cardiology, cardiovascular surgery
- Place of Service:Inpatient Hospital, Outpatient Hospital, Physician's Office