Drainage
- 0D91 - Esophagus, Upper
- 0D92 - Esophagus, Middle
- 0D93 - Esophagus, Lower
- 0D94 - Esophagogastric Junction
- 0D95 - Esophagus
- 0D96 - Stomach
- 0D97 - Stomach, Pylorus
- 0D98 - Small Intestine
- 0D99 - Duodenum
- 0D9A - Jejunum
- 0D9B - Ileum
- 0D9C - Ileocecal Valve
- 0D9E - Large Intestine
- 0D9F - Large Intestine, Right
- 0D9G - Large Intestine, Left
- 0D9H - Cecum
- 0D9J - Appendix
- 0D9K - Ascending Colon
- 0D9L - Transverse Colon
- 0D9M - Descending Colon
- 0D9N - Sigmoid Colon
- 0D9P - Rectum
- 0D9Q - Anus
- 0D9R - Anal Sphincter
- 0D9U - Omentum
- 0D9V - Mesentery
- 0D9W - Peritoneum