| ICD-10 Code | Description |
| K52.0 | Gastroenteritis and colitis due to radiation |
| K52.1 | Toxic gastroenteritis and colitis |
| K52.21 | Food protein-induced enterocolitis syndrome |
| K52.22 | Food protein-induced enteropathy |
| K52.29 | Other allergic and dietetic gastroenteritis and colitis |
| K52.3 | Indeterminate colitis |
| K52.81 | Eosinophilic gastritis or gastroenteritis |
| K52.82 | Eosinophilic colitis |
| K52.831 | Collagenous colitis |
| K52.832 | Lymphocytic colitis |
| K52.838 | Other microscopic colitis |
| K52.839 | Microscopic colitis, unspecified |
| K52.89 | Other specified noninfective gastroenteritis and colitis |
| K52.9 | Noninfective gastroenteritis and colitis, unspecified |
