Question: Alaska Subscriber Answer: The code for Barrett's esophagus is 530.85 (Other specified disorders of esophagus; Barrett's esophagus). Barrett's esophagus is the abnormal growth of intestinal-type cells above the esophagus-stomach border.Dysplasia refers to abnormalities within the cells, so Barrett's with high-grade dysplasia means the cells are really messed up. Barrett's with high-grade dysplasia is a higher risk factor for cancer developing in the esophagus than Barrett's with low-grade dysplasia.