Status: retired, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 01-Feb 2026. Module: SNOMED CT core
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module |
| 468454019 | Signal node | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| 721291013 | Signal node (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core |
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values |
| Signal node | Is a | Disorder of lymph node | false | Inferred relationship | Some | ||
| Signal node | Finding site | Structure of lymph node (body structure) | false | Inferred relationship | Some | 1 |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Virchow's node (disorder) | Is a | False | Signal node | Inferred relationship | Some |
Reference Sets
Concept inactivation indicator reference set
POSSIBLY EQUIVALENT TO association reference set (foundation metadata concept)
FHIR