Q20-Q28: Congenital malformations of the circulatory system
Q26: Congenital malformations of great veins
Congenital malformations of great veins are a group of conditions that occur when the large blood vessels, or 'great veins,' that carry blood to the heart are not formed correctly before birth. This group includes conditions like anomalies of inferior vena cava, anomalies of superior vena cava, persistent left superior vena cava, and other malformations. These conditions occur during a baby's development in the womb and can affect how blood flows through the body. Common symptoms can vary, but might include difficulty breathing, fatigue, or a blue tint to the skin, lips, or nail beds due to the blood not being properly oxygenated. These conditions can worsen over time if not properly managed, and may impact the body's circulatory and respiratory systems. The exact cause of these malformations is not fully understood, but they are likely due to a combination of genetic and environmental factors.
Subcodes of Q26:
- Q26.0: Congenital stenosis of vena cava
- Q26.1: Persistent left superior vena cava
- Q26.2: Total anomalous pulmonary venous connection
- Q26.3: Partial anomalous pulmonary venous connection
- Q26.4: Anomalous pulmonary venous connection, unspecified
- Q26.5: Anomalous portal venous connection
- Q26.6: Portal vein-hepatic artery fistula
- Q26.8: Other congenital malformations of great veins
- Q26.9: Congenital malformation of great vein, unspecified
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