
In a provider directory this allows the association of endpoints with the healthcare service and thus a channel for delivery to that service.

### Usage Notes

**Profile specific implementation guidance:**

At least one of the following defined identifier types, known to this profile, **SHALL** be supplied:

* [AU HPI-O](https://hl7.org.au/fhir/4.1.0/StructureDefinition-au-hpio.html)
* [AU Residential Aged Care Service Identifier](https://hl7.org.au/fhir/4.1.0/StructureDefinition-au-residentialagedcareserviceidentifier.html)
* [AU Vendor Directory Identifier](StructureDefinition-au-pd-vdi.html)
