Right aortic arch

This code describes a congenital anomaly where the aortic arch, the main artery carrying blood from the heart, is located on the right side of the trachea and esophagus instead of the typical left side. This can lead to a vascular ring that compresses the trachea and/or esophagus, causing respiratory or swallowing difficulties.

Use this code when documentation explicitly states "right aortic arch" as a congenital malformation. This diagnosis is often made prenatally via ultrasound or postnatally through imaging studies like CT angiography or MRI.

• Differentiate from other aortic arch anomalies, such as double aortic arch (Q25.43) or interrupted aortic arch (Q25.44).
• Code any associated symptoms, such as dysphagia (R13.19) or stridor (R06.1), as secondary diagnoses.
• Ensure the laterality is clearly documented as "right" to support this specific code.