Mouth, esophagus (esophagus), stomach, and intestines (K00-K67; K90-K93).
- Erosive gastritis (gastric mucosal erosions).
- Upper gastrointestinal bleeding (GIB).
- Mallory-Weiss syndrome – clustered longitudinal (elongated) tears of the mucosa (mucous membrane) and submucosa (submucosal connective tissue) of the esophagus occurring in alcoholics, which may be associated with potentially life-threatening hemorrhage of the outer esophagus and/or the entrance to the stomach (gastrointestinal hemorrhage/GIB) as a complication
- Ventricular ulcer (gastric ulcer).
