The surgical creation of an artificial excretory opening between the ileum, at the end of the small intestine, and the outside of the abdominal wall is

it is referred to as ileostomy. ileostomy is surgical procedure performed when the lower part of ileum are not functioning well. for instance, when the rectum and colon malfunctions a patient can be referred to undertake this type of surgery. the common reason for ileostomy is a disease referred to as inflammatory bowel disorder. the two types of inflammatory diseases include ulcerative colitis and Crohn's disease.  

The answer is ileostomy
  Ileostomy is a surgical opening made in abdominal wall the surgical opening is also known as stoma. The ileum which is the lower end of the small intestine is brought out from this opening. This end is then stitched outside the body to collect digested food. It is used in conditions where large intestine fails to work.