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 |
| Time symptom lasts | Is a | Temporal measure of symptom (observable entity) | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Symptom findings in relation to time lasts (finding) | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts seconds | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts minutes | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts hours | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts days | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts weeks | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom lasts months | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Symptom is continuous | Interprets | True | Time symptom lasts | Inferred relationship | Some | 1 |
| Time patient was unconscious (observable entity) | Is a | True | Time symptom lasts | Inferred relationship | Some |
This concept is not in any reference sets