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Diagram of the stomach, showing the different regions.
ICD-10 code:
ICD-9 code: 44.3
MeSH D005763
Other codes:

A gastroenterostomy is the surgical creation of a connection between the stomach and the jejunum. The operation can sometimes be performed at the same time as a partial gastrectomy (the removal of part of the stomach). Gastroenterostomy was in the past typically performed to treat peptic ulcers, but today is usually carried out to enable food to pass directly to the small intestine, bypassing a damaged duodenum. The procedure is becoming less common, due to advances in the treatment of ulcers, new antibiotics and drugs.