| C7B | Secondary neuroendocrine tumors | NON-BILLABLE CODE |
| C7B.0 | Secondary carcinoid tumors | NON-BILLABLE CODE |
| C7B.00 | Secondary carcinoid tumors, unspecified site | BILLABLE CODE |
| C7B.01 | Secondary carcinoid tumors of distant lymph nodes | BILLABLE CODE |
| C7B.02 | Secondary carcinoid tumors of liver | BILLABLE CODE |
| C7B.03 | Secondary carcinoid tumors of bone | BILLABLE CODE |
| C7B.04 | Secondary carcinoid tumors of peritoneum | BILLABLE CODE |
| C7B.09 | Secondary carcinoid tumors of other sites | BILLABLE CODE |
| C7B.1 | Secondary Merkel cell carcinoma | BILLABLE CODE |
