Data Standards
Patients benefit when health care providers can access and understand their health information at the point of care. Data Standards make this possible by supporting the consistent exchange of information between systems, also known as interoperability.
An implementation guide* is a technical specification that explains how to use a standard for a specific health care use case, system, or jurisdiction. It may include business requirements, rules, data structures, terminology, examples, and testing resources. An implementation guide supports interoperability between systems, but it is not a complete end-to-end implementation manual.
Older specifications may be removed when they are no longer current. Contact us to request a previous version.
* The term “implementation guide” is used here as defined in the HL7 standard.
Related
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Acute and Community Clinical Data Repository Input Standard Supports the contribution of acute and community clinical data to the provincial clinical data repository (CDR), enabling secure and consistent exchange of patient health information.
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Client and Provider Registries Supports the identification of patients, health care providers, organizations, locations and health services.
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Immunization Supports the contribution, access and exchange of immunization information.
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Laboratory Supports the contribution, access and exchange of laboratory orders and results.
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Medical Imaging Supports the contribution, access and exchange of laboratory orders and results.
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Medications Supports the contribution, access and exchange of medication and pharmacy information.
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Ontario Clinical Report Exchange HL7 FHIR Implementation Guide Enables the contribution, retrieval and exchange of clinical reports between provider systems and provincial repositories using HL7 FHIR.
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Ontario Integrated Assessment Record HL7 FHIR Implementation Guide Enables the contribution and retrieval of assessment information from the Integrated Assessment Record (IAR) repository.
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Ontario Mental Health and Addictions Provincial Data Set – HL7 FHIR Implementation Guide Supports the contribution and exchange of mental health and addictions clinical data with provincial reporting and information repositories.
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Ontario Patient Summary – HL7 FHIR Implementation Guide Enables the exchange and consumption of a standardized patient summary containing key health information to support continuity of care.
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Ontario Surgical Efficiency Reporting Information System – HL7 FHIR Implementation Guide Supports the contribution and exchange of surgical scheduling, wait time and performance information with the Surgical Efficiency Reporting Information System.
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Provincial Clinical Document Architecture Header Standard Establishes a standardized header structure for clinical documents exchanged between systems and provincial repositories.
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Referrals, Consultations and Forms Supports the electronic exchange of referrals, consultation requests and structured forms.
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Last Updated: September 25, 2026
