2025 ICD-10-CM code Q20
Congenital malformations of cardiac chambers and connections.
Medical necessity is established by the presence of a congenital heart defect requiring medical intervention, such as surgical repair or ongoing medical management.
Diagnosing and managing patients with congenital heart defects.
In simple words: This code represents a birth defect affecting the structure of the heart's chambers and the connections between them.
Congenital malformations of cardiac chambers and connections. Excludes1: dextrocardia with situs inversus (Q89.3) mirror-image atrial arrangement with situs inversus (Q89.3)
Example 1: A newborn is diagnosed with an atrial septal defect (ASD), a hole between the heart's upper chambers., A child is found to have a ventricular septal defect (VSD), a hole between the heart's lower chambers., An infant presents with atrioventricular septal defect (AVSD), a combination of ASD and VSD with abnormalities of the heart valves.
Detailed clinical findings, imaging studies (such as echocardiogram, cardiac MRI), and cardiac catheterization reports are typically required for accurate coding.
** This code is part of a block of codes (Q20-Q28) describing congenital malformations of the circulatory system.
- Specialties:Pediatric cardiology, congenital cardiac surgery
- Place of Service:Inpatient Hospital, Outpatient Hospital, Physician's Office