D37: Neoplasm of uncertain or unknown behaviour of oral cavity and digestive organs

D37.9: Neoplasm of uncertain or unknown behaviour: Digestive organ, unspecified

When there is abnormal growth of tissue, then this is also referred to as a tumor. The tissue in the body is made up of cells. A tumor disorder involves the cells multiplying more than normal. This results in abnormal or excess tissue forming. A tumor can be benign or malignant.

The digestive include all organs involved in absorbing and processing food. These include the mouth, the oesophagus, the stomach, the intestines, the liver, the pancreas and the anus.