| D37.0 | Neoplasm of uncertain behavior of lip, oral cavity and pharynx | NON-BILLABLE CODE |
| D37.01 | Neoplasm of uncertain behavior of lip | BILLABLE CODE |
| D37.02 | Neoplasm of uncertain behavior of tongue | BILLABLE CODE |
| D37.03 | Neoplasm of uncertain behavior of the major salivary glands | NON-BILLABLE CODE |
| D37.030 | Neoplasm of uncertain behavior of the parotid salivary glands | BILLABLE CODE |
| D37.031 | Neoplasm of uncertain behavior of the sublingual salivary glands | BILLABLE CODE |
| D37.032 | Neoplasm of uncertain behavior of the submandibular salivary glands | BILLABLE CODE |
| D37.039 | Neoplasm of uncertain behavior of the major salivary glands, unspecified | BILLABLE CODE |
| D37.04 | Neoplasm of uncertain behavior of the minor salivary glands | BILLABLE CODE |
| D37.05 | Neoplasm of uncertain behavior of pharynx | BILLABLE CODE |
| D37.09 | Neoplasm of uncertain behavior of other specified sites of the oral cavity | BILLABLE CODE |
| D37.1 | Neoplasm of uncertain behavior of stomach | BILLABLE CODE |
| D37.2 | Neoplasm of uncertain behavior of small intestine | BILLABLE CODE |
| D37.3 | Neoplasm of uncertain behavior of appendix | BILLABLE CODE |
| D37.4 | Neoplasm of uncertain behavior of colon | BILLABLE CODE |
| D37.5 | Neoplasm of uncertain behavior of rectum | BILLABLE CODE |
| D37.6 | Neoplasm of uncertain behavior of liver, gallbladder and bile ducts | BILLABLE CODE |
| D37.8 | Neoplasm of uncertain behavior of other specified digestive organs | BILLABLE CODE |
| D37.9 | Neoplasm of uncertain behavior of digestive organ, unspecified | BILLABLE CODE |
