| ICD-10 Code | Description |
| D37.01 | Neoplasm of uncertain behavior of lip |
| D37.02 | Neoplasm of uncertain behavior of tongue |
| D37.030 | Neoplasm of uncertain behavior of the parotid salivary glands |
| D37.031 | Neoplasm of uncertain behavior of the sublingual salivary glands |
| D37.032 | Neoplasm of uncertain behavior of the submandibular salivary glands |
| D37.039 | Neoplasm of uncertain behavior of the major salivary glands, unspecified |
| D37.04 | Neoplasm of uncertain behavior of the minor salivary glands |
| D37.05 | Neoplasm of uncertain behavior of pharynx |
| D37.09 | Neoplasm of uncertain behavior of other specified sites of the oral cavity |
| D37.1 | Neoplasm of uncertain behavior of stomach |
| D37.2 | Neoplasm of uncertain behavior of small intestine |
| D37.3 | Neoplasm of uncertain behavior of appendix |
| D37.4 | Neoplasm of uncertain behavior of colon |
| D37.5 | Neoplasm of uncertain behavior of rectum |
| D37.6 | Neoplasm of uncertain behavior of liver, gallbladder and bile ducts |
| D37.8 | Neoplasm of uncertain behavior of other specified digestive organs |
| D37.9 | Neoplasm of uncertain behavior of digestive organ, unspecified |
