Noninfective enteritis and colitis (K50-K52) includes noninfective inflammatory bowel disease excludes1 irritable bowel syndrome (K58.-) megacolon (K59.3-) |
| K50: Crohn's disease [regional enteritis] |
| K51: Ulcerative colitis |
| K52: Other and unspecified noninfective gastroenteritis and colitis |