# NamingSystem ## Get FHIR r4 naming systems - [GET /site/{siteId}/fhir/naming-system](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_getnamingsystems.md) ## Create FHIR r4 naming system - [POST /site/{siteId}/fhir/naming-system](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_createnamingsystem.md) ## Get FHIR r4 naming system by ID - [GET /site/{siteId}/fhir/naming-system/{id}](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_getnamingsystem.md) ## Update FHIR r4 naming system - [PUT /site/{siteId}/fhir/naming-system/{id}](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_updatenamingsystem.md) ## Delete FHIR r4 naming system - [DELETE /site/{siteId}/fhir/naming-system/{id}](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_deletenamingsystem.md) ## Get FHIR r4 naming system history by ID - [GET /site/{siteId}/fhir/naming-system/{id}/history](https://docs.heydonto.com/apis/fhir/openapi/namingsystem/fhirnamingsystemcontroller_getnamingsystemhistory.md)