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.

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ICD10 code of Pulmonary atresia and ICD9 code

ICD-10 and ICD-9 codes for Pulmonary atresia, with classification details for clinicians, coders and patients.

ICD9 and ICD10 codes of Pulmonary atresia

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. 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.



How is pulmonary atresia classified for medical coding?


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:



  • ICD-10-CM: Q22.0 (Congenital pulmonary valve atresia).

  • ICD-9-CM: 746.01 (Congenital pulmonary valve atresia).

  • Clinical Note: If pulmonary atresia occurs in conjunction with other complex anomalies, such as Tetralogy of Fallot, additional codes are often required to accurately reflect the patient's full clinical picture.



What are the primary symptoms and diagnostic markers?


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.



How does the DiseaseMaps community support those with pulmonary atresia?


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.



Next steps



  • Consult with a pediatric cardiothoracic surgeon to discuss the specific anatomy of the heart and the necessity of immediate or staged surgical repair.

  • Request a referral to a genetic counselor to determine if there are underlying genetic syndromes associated with the cardiac defect.

  • Connect with the 31 other families on DiseaseMaps.org to share resources and find support for the long-term journey of living with pulmonary atresia.

  • Maintain a detailed medical record, including all echocardiogram reports and surgical summaries, to ensure continuity of care as the child transitions to adult congenital cardiology.



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.



References



  • NIH Genetic and Rare Diseases (GARD) Information Center: Pulmonary Atresia.

  • Orphanet: Congenital pulmonary valve atresia (ORPHA: 79284).

  • OMIM (Online Mendelian Inheritance in Man): Pulmonary Atresia, #265400.

  • American Heart Association: Congenital Heart Defects - Pulmonary Atresia.

Author: DiseaseMaps Editorial Team
Reviewed against authoritative medical sources (NIH GARD, Orphanet, OMIM)
Last updated: 2026-04-08
Medical disclaimer: This information does not substitute professional medical advice. Always consult your doctor before making health decisions.
Source: DiseaseMaps.org
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