K59: Other functional intestinal disorders

K59.8: Other specified functional intestinal disorders

The intestines are made up of the small intestine and the large intestine or colon. Most of the nutrients are absorbed in the small intestine. The large intestine (colon) is where water and salt are withdrawn from the stool. The last segment of the large intestine (colon) is the rectum. Stool then leaves the body through the anus.

There are various bowel complaints for which it is not possible to establish clear causes. For example, you may have constipation, flatulence or abdominal pain without a cause being found for it.