Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2008. Module: SNOMED CT core
Descriptions:
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Unable to imitate vocalisation | Is a | True | Unable to produce voice | Inferred relationship | Some | |
| Unable to produce voice/voiceless combinations | Is a | True | Unable to produce voice | Inferred relationship | Some | |
| Unable to produce voiceless sounds | Is a | True | Unable to produce voice | Inferred relationship | Some | |
| Unable to produce voiced sounds | Is a | True | Unable to produce voice | Inferred relationship | Some | 
Reference Sets
Description inactivation indicator reference set