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 | 
| Valved tube | Is a | Tube | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Holter valve | Is a | True | Valved tube | Inferred relationship | Some | |
| Replacement of cerebral ventricular valve | Direct device | False | Valved tube | Inferred relationship | Some | 1 | 
| Insertion of valved tube into larynx | Direct device | False | Valved tube | Inferred relationship | Some | 1 | 
| Insertion of valved tube into larynx | Direct device | True | Valved tube | Inferred relationship | Some | 1 | 
Reference Sets