# Slot: identifier URI: [fhir:identifier](https://build.fhir.org/identifier) ## Applicable Classes | Name | Description | Modifies Slot | | --- | --- | --- | | [CodeSystem](CodeSystem.md) | Declares the existence of and describes a packages system or packages system ... | no | | [ConceptMap](ConceptMap.md) | | no | ## Properties * Range: [String](String.md) ## Identifier and Mapping Information ## Mappings | Mapping Type | Mapped Value | | --- | --- | | self | fhir:identifier | | native | fhir:identifier | ## LinkML Source
```yaml name: identifier alias: identifier domain_of: - CodeSystem - ConceptMap range: string ```