Peptic Esophagitis, also known as reflux esophagitis, is related to esophagitis, eosinophilic, 1 and gastrointestinal system disease. An important gene associated with Peptic Esophagitis is ATP12A (ATPase H+/K+ Transporting Non-Gastric Alpha2 Subunit), and among its related pathways/superpathways are IL-1 Family Signaling Pathways and Toll-Like receptor Signaling Pathways. The drugs Zinc cation and Omeprazole have been mentioned in the context of this disorder. Affiliated tissues include heart and lymph node, and related phenotypes are homeostasis/metabolism and neoplasm