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 | 
| 380377011 | First episode | en | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 646224015 | First episode (qualifier value) | en | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT core | 
| 4502141000146113 | eerste episode | nl | Synonym (core metadata concept) | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Netherlands NRC maintained module (core metadata concept) | 
| 4502151000146111 | eerste episode (kwalificatiewaarde) | nl | Fully specified name | Active | Entire term case insensitive (core metadata concept) | SNOMED CT Netherlands NRC maintained module (core metadata concept) | 
| Outbound Relationships | Type | Target | Active | Characteristic | Refinability | Group | Values | 
| First episode | Is a | Episodicities | true | Inferred relationship | Some | 
| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| First relationship (finding) | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first smiled | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first tooth appeared | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first sat | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first crawled | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first stood | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first walked | Episodicity | False | First episode | Inferred relationship | Some | |
| Age when first talked | Episodicity | False | First episode | Inferred relationship | Some | |
| Endogenous depression first episode | Episodicity | False | First episode | Inferred relationship | Some | |
| First known suicide attempt | Episodicity | False | First episode | Inferred relationship | Some | 
This concept is not in any reference sets