Identifier Policy

The PS-AB uses URIs whenever Object Identifiers are required. URIs (Uniform Resource Identifiers) are globally unique identifiers for individual objects, as well as for value sets, code systems, profiles, namespaces, and more. URIs are the preferred object identifiers for FHIR objects, and are usually represented as URLs.

For more information, or to obtain the proper URLs for use in this project, contact Alberta Health at hisca@gov.ab.ca

The base namespace for global identifier such as the system identifier for Alberta Personal Health Number will be referred to as "[id-system-global-base]" throughout the specification.

The base namespace for a local identifier such as a Composition.identifier Assigning Authority will be referred to as "[id-system-local-base]" throughout the specification.

The base namespace for local code systems and value sets will be referred to as "[code-system-local-base]" and “[value-set-base]” throughout the specification.

Due to the evolving FHIR standard and its developing framework and governance, implementers should recognize that these identifiers may change if identifier registration becomes governed nationally or internationally. Implementers are recommended to implement URIs using configurable variables.

Identifier Variables

Variable	Value
[base-structure]	"https://www.alberta.ca/fhir/StructureDefinition"
[id-system-global-base]	"https://fhir.infoway-inforoute.ca/NamingSystem"
[id-system-local-base]	"https://www.alberta.ca/fhir/NamingSystem"
[code-system-local-base]	"https://www.alberta.ca/fhir/CodeSystem"
[value-set-local-base]	"https://www.alberta.ca/fhir/ValueSet"