<unk><unk>  may be classified according to etiology into two groups including<unk><unk>  associated with inflammatory bowel disease and<unk><unk>  associated with Clostridium difficile pseudomembranous colitis.
Toxic megacolon classification
Mesenteric ischemia classification
Gastrointestinal perforation classification
Short bowel syndrome classification
Bowel obstruction classification
Diverticulitis classification
Lower gastrointestinal bleeding classification
Hirschsprung's disease classification