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 |
| Communication aid | Is a | Office artefact | false | Inferred relationship | Some | ||
| Communication aid | Is a | Communications equipment | true | Inferred relationship | Some |
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group |
| Provision of communication aid | Direct device | True | Communication aid | Inferred relationship | Some | 1 |
| Provision of telephone | Direct device | True | Communication aid | Inferred relationship | Some | 3 |
| Position communication aid near subject (procedure) | Direct device | True | Communication aid | Inferred relationship | Some | 1 |
| Position call light near subject (procedure) | Direct device | True | Communication aid | Inferred relationship | Some | 1 |
| Restriction of using communication systems (procedure) | Direct device | True | Communication aid | Inferred relationship | Some | 1 |
This concept is not in any reference sets