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Identifier Policy

The PCOI microservice 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. All URIs used in eHealth Ontario projects must conform to eHealth Ontario's URI Management Policy.

For more information, or to obtain the proper URLs for use in this project, contact Ontario Health at DigitalHealthStandards@OntarioHealth.ca

The base URL for PCOI FHIR interface will be referred to as "[base]" in the sections and examples below. These identifiers capture the URI specific to an implementation/environment, such as the URL for resources and extensions used in the PCOI solution.

For global/shareable identifiers (e.g. Ontario Physician License, etc.), this might be replaced with http://hl7.org/fhir/NamingSystem/ca-on-license-physician in the future if/when HL7 FHIR Naming System registry is available.

The base for global identifier namespaces will be referred to as "[id-system-global-base]" in the sections and examples below. The base for local identifier namespaces (e.g. Practitioner identifiers, etc.) will be referred to as "[id-system-local-base]" in the sections and examples below. The base for local code systems (e.g. SDMRelationshipType) will be referred to as "[code-system-local-base]" in the sections and examples below. 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.

Table - Identifier Variables