| ICD Code | Description |
|---|---|
| 2090 | Malignant carcinoid tumors of the small intestine |
| 2091 | Malignant carcinoid tumors of the appendix, large intestine, and rectum |
| 2092 | Malignant carcinoid tumors of other and unspecified sites |
| 2093 | Malignant poorly differentiated neuroendocrine tumors |
| 2094 | Benign carcinoid tumors of the small intestine |
| 2095 | Benign carcinoid tumors of the appendix, large intestine, and rectum |
| 2096 | Benign carcinoid tumors of other and unspecified sites |
| 2097 | Secondary neuroendocrine tumors |