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 | 
| External beam radiation therapy setup angles | Is a | External beam radiation therapy setup parameters | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Gantry angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Tilt angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Tangential angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Couch angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Jaw angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Beam angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Wedge angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | |
| Hinge angle | Is a | True | External beam radiation therapy setup angles | Inferred relationship | Some | 
This concept is not in any reference sets