Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module |
| 253304011 | Time since symptom started | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| 543579019 | Time since symptom started (context-dependent category) | en | Fully specified name | Inactive | Only initial character case insensitive (core metadata concept) | SNOMED CT core |
| 2560549013 | Time since symptom started (observable entity) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
| Time since symptom started | 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 start time | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started minutes ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started hours ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started days ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started weeks ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started months ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
| Symptom started years ago | Interprets | True | Time since symptom started | Inferred relationship | Some | 1 |
This concept is not in any reference sets