Q26 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Congenital malformations of great veins.
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Congenital stenosis of vena cava
Persistent left superior vena cava
Total anomalous pulmonary venous connection
Partial anomalous pulmonary venous connection
Anomalous pulmonary venous connection, unspecified
Anomalous portal venous connection
Portal vein-hepatic artery fistula
Other congenital malformations of great veins
Congenital malformation of great vein, unspecified
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