| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Is a | Malignant neoplasm of lip, oral cavity and/or pharynx | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Pathological process | Malignant neoplastic process | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Finding site | Lip, oral cavity and pharynx (combined site) | false | Inferred relationship | Existential restriction modifier |  |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Finding site | Structure of head and/or neck | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Finding site | Structure of mouth and/or pharynx | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Finding site | Structure of mouth and/or pharynx | false | Inferred relationship | Existential restriction modifier | 1 |  | 
| Malignant neoplasm of other sites of lip, oral cavity and pharynx | Associated morphology | Malignant neoplasm of primary, secondary, or uncertain origin | false | Inferred relationship | Existential restriction modifier | 1 |  |