Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 30-Sep 2021. Module: SNOMED CT core
Descriptions:
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Maternal first stage of labor period | Is a | Maternal intrapartum period | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Cardiac arrest after administration of sedation during labor | Occurrence | True | Maternal first stage of labor period | Inferred relationship | Some | 2 | 
| Sedation procedure whilst cervical dilatation is more than 3cm (procedure) | Occurrence | True | Maternal first stage of labor period | Inferred relationship | Some | 1 | 
| Sedation procedure whilst cervical dilatation is less than or equal to 3cm (procedure) | Occurrence | True | Maternal first stage of labor period | Inferred relationship | Some | 1 | 
This concept is not in any reference sets