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 |
| Optic disc observable | Is a | Eye/vision observable (observable entity) | false | Inferred relationship | Some | ||
| Optic disc observable | Is a | Eye observable (observable entity) | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Optic disc cup | Is a | True | Optic disc observable | Inferred relationship | Some | |
| Optic cup/disc ratio | Is a | False | Optic disc observable | Inferred relationship | Some | |
| Horizontal diameter of optic disc (observable entity) | Is a | False | Optic disc observable | Inferred relationship | Some | |
| Vertical diameter of optic disc (observable entity) | Is a | True | Optic disc observable | Inferred relationship | Some | |
| Neuroretinal rim observable (observable entity) | Is a | True | Optic disc observable | Inferred relationship | Some | |
| Optic disc size (observable entity) | Is a | True | Optic disc observable | Inferred relationship | Some | |
| Flat optic disc | Interprets | True | Optic disc observable | Inferred relationship | Some | 2 |
| Absence of margin of optic disc | Interprets | True | Optic disc observable | Inferred relationship | Some | 2 |
This concept is not in any reference sets