K31: Other diseases of stomach and duodenum

K31.5: Obstruction of duodenum

The first part of the small intestine is also called the duodenum. This part is directly connected to the stomach and the lower part of the small intestine. The small intestine is lined with mucous membrane.

The first part of your small intestine is obstructed. If the small intestine is too narrow or obstructed, it is difficult for food to move along it properly. You may have to vomit as a result. It is also possible that you will have abdominal pain. You may also lose weight.