Congenital diverticulum of esophagus

This code signifies a congenital outpouching or sac-like protrusion from the wall of the esophagus, present at birth. These diverticula are typically true diverticula, involving all layers of the esophageal wall, and can vary in size and location.

Use this code when documentation clearly indicates a diagnosis of an esophageal diverticulum that is explicitly stated as congenital in origin. This diagnosis is often made through imaging studies such as barium swallow or endoscopy.

• Differentiate from acquired esophageal diverticula (e.g., Zenker's, traction, epiphrenic), which are coded elsewhere.
• Ensure the documentation specifies "congenital" to support this code; otherwise, an unspecified or acquired diverticulum code may be more appropriate.
• Do not use for esophageal webs or rings, which are distinct congenital anomalies.