Short answer · Medically reviewed summary · Last updated: 2026-04-08
The ICD-10-CM code for pulmonary atresia is Q22.0, which classifies the condition as a congenital malformation of the pulmonary valve. Under the older ICD-9-CM system, pulmonary atresia was classified under code 746.01. What is the clinical definition of pulmonary atresia? Pulmonary atresia is a serious congenital heart defect where the pulmonary valve—the valve that controls blood flow from the heart to the lungs—fails to develop correctly.
The ICD-10-CM code for pulmonary atresia is Q22.0, which classifies the condition as a congenital malformation of the pulmonary valve. Under the older ICD-9-CM system, pulmonary atresia was classified under code 746.01.
Pulmonary atresia is a serious congenital heart defect where the pulmonary valve—the valve that controls blood flow from the heart to the lungs—fails to develop correctly. Because the valve is completely blocked, blood cannot flow from the right ventricle into the pulmonary artery to receive oxygen from the lungs. This condition is typically categorized into two primary types: pulmonary atresia with an intact ventricular septum (PA-IVS) and pulmonary atresia with a ventricular septal defect (PA-VSD). Understanding the specific classification of pulmonary atresia is essential for surgical planning and long-term prognosis, as each subtype presents different hemodynamic challenges.
Accurate medical coding is vital for insurance authorization and clinical tracking. The classification of pulmonary atresia relies on the presence of associated defects. The following codes are standard in medical billing:
Infants born with pulmonary atresia typically exhibit signs of cyanosis (a bluish tint to the skin, lips, or nails) shortly after birth due to low oxygen levels in the blood. Because the lungs are not receiving enough blood through the normal pathway, the body relies on a patent ductus arteriosus (PDA)—a temporary fetal blood vessel—to bypass the blockage. Diagnosis is usually confirmed via echocardiography, which allows pediatric cardiologists to visualize the anatomy of the pulmonary valve and the size of the right ventricle. Early detection is a critical factor in the management of pulmonary atresia, as many newborns require immediate intervention to maintain blood flow.
Navigating a diagnosis of pulmonary atresia can be emotionally taxing for families. At DiseaseMaps.org, 31 members have already joined our community to share their personal experiences, surgical journeys, and long-term management strategies. Connecting with others who understand the unique challenges of living with pulmonary atresia—ranging from early childhood surgeries to managing ongoing cardiac health—can provide invaluable emotional support and practical insights that are not always available in a clinical setting.
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.