Cardiovascular System (I00-I99).
- Coronary artery disease (CAD) – disease of the coronary arteries.
- Myocardial infarction (heart attack)
Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93).
- Diffuse esophageal spasm – neuromuscular dysfunction of esophageal muscles with intermittent retrosternal (located behind the sternum) pain.
- Hypercontractile esophagus (nutcracker esophagus).
- Gastric ulcer (stomach ulcer)
- Esophagitis (inflammation of the esophagus)
- Esophageal achalasia – dysfunction of the esophagus with lack of smooth muscle relaxation due to degeneration of a plexus of nerves in the lower portion of the esophagus.
- Esophageal diverticula – protrusions of mucosa through the muscular layer of the esophagus.
- Esophageal ulcers – ulcers in the esophageal wall.
Neoplasms – tumor diseases (C00-D48).
- Gastric carcinoma (stomach cancer)
