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 |
| Railway line (environment) | Is a | Railway line location | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Railway running on roadway | Is a | True | Railway line (environment) | Inferred relationship | Some | |
| Electrified railway line | Is a | True | Railway line (environment) | Inferred relationship | Some | |
| Underground railway line | Is a | True | Railway line (environment) | Inferred relationship | Some |
This concept is not in any reference sets