Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
| M category (observable entity) | Is a | Generic tumor staging descriptor (tumor staging) | false | Inferred relationship | Some | ||
| M category (observable entity) | Is a | Tumor-node-metastasis (TNM) tumor staging system | false | Inferred relationship | Some | ||
| M category (observable entity) | Is a | TNM category | true | Inferred relationship | Some | ||
| M category (observable entity) | Inheres in | Neoplasm | false | Inferred relationship | Some | 1 |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Metastasis stage M2 | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| Metastasis stage M3 | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| Metastasis stage M4 | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| MX category | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| M0 category | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| M1 category | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| pM category | Is a | False | M category (observable entity) | Inferred relationship | Some | |
| pM category (observable entity) | Is a | True | M category (observable entity) | Inferred relationship | Some | |
| cM category (observable entity) | Is a | True | M category (observable entity) | Inferred relationship | Some | |
| Integrated M category (observable entity) | Is a | True | M category (observable entity) | Inferred relationship | Some |
This concept is not in any reference sets