Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jan 2002. Module: SNOMED CT core
Descriptions:
| Id | Description | Lang | Type | Status | Case? | Module | 
| 345384017 | Excessive day and night-time sleepiness | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 345385016 | 24 hour hypersomnolence | en | Synonym (core metadata concept) | Active | Entire term case sensitive (core metadata concept) | SNOMED CT core | 
| 618305019 | Excessive day and night-time sleepiness (disorder) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 339541000052112 | överdriven trötthet dag- och nattetid | sv | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Sweden NRC maintained module (core metadata concept) | 
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| Excessive day and night-time sleepiness | Is a | Hypersomnia | true | Inferred relationship | Some | ||
| Excessive day and night-time sleepiness | Finding site | Brain tissue structure | false | Inferred relationship | Some | ||
| Excessive day and night-time sleepiness | Finding site | Brain structure | false | Inferred relationship | Some | ||
| Excessive day and night-time sleepiness | Interprets | Sleep | false | Inferred relationship | Some | ||
| Excessive day and night-time sleepiness | Interprets | State of consciousness and awareness | false | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
This concept is not in any reference sets