Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93).
- Ulcerative colitis – inflammatory bowel disease (IBD).
- Infectious intestinal disease, unspecified.
- Crohn’s disease – chronic inflammatory bowel disease (IBD); usually progresses in relapses and can affect the entire digestive tract; characteristic is the segmental affection of the intestinal mucosa, that is, several intestinal segments may be affected, which are separated from each other by healthy sections
