| | Cancer | Gastric Cancer Which abbreviation stands for the body system containing stomach? The correct abbreviation for the body system containing the stomach is GI. It stands for Gastrointestinal system. Gastric Cancer - Related Articles What do you when your tummy hurts? Can a X-ray detect any stomach problems? What happens in the stomach when you get a ache? What type of cancer causes diarrhea? What is sciatica? How to Find a Stomach Cancer Support Group What does belly up mean?