| K52 | Other and unspecified noninfective gastroenteritis and colitis |
| | Gastroenteritis and colitis due to radiation |
| | Toxic gastroenteritis and colitis |
| | Allergic and dietetic gastroenteritis and colitis |
| | Food protein-induced enterocolitis syndrome |
| | Food protein-induced enteropathy |
| | Other allergic and dietetic gastroenteritis and colitis |
| | Indeterminate colitis |
| | Other specified noninfective gastroenteritis and colitis |
| | Eosinophilic gastritis or gastroenteritis |
| | Eosinophilic colitis |
| | Microscopic colitis |
| | Collagenous colitis |
| | Lymphocytic colitis |
| | Other microscopic colitis |
| | Microscopic colitis, unspecified |
| | Other specified noninfective gastroenteritis and colitis |
| | Noninfective gastroenteritis and colitis, unspecified |
