AU Core Implementation Guide
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AU Core Implementation Guide, published by HL7 Australia. This guide is not an authorized publication; it is the continuous build for version 1.0.0-ci-build built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7au/au-fhir-core/ and changes regularly. See the Directory of published versions

AU Core Data for Interoperability

Page standards status: Informative

Australian Core Data for Interoperability (AUCDI) is the product of a national clinician focussed requirements gathering project operating as part of the Sparked AU FHIR Accelerator. The AUCDI outputs form a set of data requirements to be considered and referred to as part of the development and definition of AU Core.

The primary intent of the AUCDI is to design and govern a collection of coherent, reusable building blocks known as ‘data groups’. These data groups specify “what” the clinical requirements of the clinical information that should be included for data entry, data use, and sharing of information supporting healthcare delivery. However, it does not specify “how” the data is exchanged; this is the role fulfilled by the FHIR standard. AUCDI is not required to be implemented as a whole single product. Parts can be implemented as required for specific use cases.

AUCDI Release 1 (R1) is focused on an agreement of “the core of the core” common data elements; minimum data required to support standardised clinical information capture at the point of care as well as enable the safe and meaningful exchange of information to other care providers.

AU Core is intended to provide an implementable standard for FHIR based interfaces for provider and patient information systems in Australia​ providing:

  • an exchange standard for AUCDI (the underpinning clinical data model)
  • Data model and RESTful API interactions that set minimum expectations for a system to record, update, search, and retrieve core digital health and administrative information​
  • be built on top of for standards development for specific use cases

With AUCDI defining clinical data requirements and FHIR AU Core providing detailed FHIR-based profiles for meeting clinical data requirements and administrative data requirements, an interpretation of AUCDI is necessary which is undertaken through the community.

Updates to AU Core depend upon community input and we encourage our audience to submit questions and feedback to AU Core specifications by clicking on the Propose a change link in the footer of every page. In addition, we encourage requesting any necessary clarifications to AUCDI through the AUCDI process that helps inform future updates to FHIR AU Core.

AUCDI mappings into AU Core

The table below shows the relationship between the AUCDI Data Groups and Elements and AU Core profiles.
Column attribute descriptions are as follows:

  • AUCDI Data Group: Represents a grouping of one or more AUCDI Data Elements.
  • AUCDI Data Element: Represents a single, discreet clinical concept defined by AUCDI.
  • AU Core Profile(s): Represents the mapping of AUCDI Data Groups and AUCDI Data Elements to AU Core FHIR artefacts.
  • FHIR Path: The specific path in the FHIR standards for each AUCDI Data Element within, showing where and how to implement these elements in FHIR-based systems.
  • Comment: Additional information about the mapping including an explanation of where an element or group is not yet mapped.
AUCDI Data Group AUCDI Data Element AU Core Profile(s) FHIR Path Comment
Adverse reaction risk summary Substance name AU Core AllergyIntolerance AllergyIntolerance.code
Manifestation AU Core AllergyIntolerance AllergyInterolance.reaction
Comment AU Core AllergyIntolerance AllergyIntolerance.note
Last updated - - This AUCDI element is a Future Candidate Requirement Under Consideration. Future versions of AU Core will develop and test approaches to addressing Last Updated.
Problem/Diagnosis summary Problem / Diagnosis name AU Core Condition Condition.code
Body site/laterality AU Core Condition Condition.code
Status AU Core Condition Condition.clinicalStatus
Comment AU Core Condition Condition.note
Last updated - - This AUCDI element is a Future Candidate Requirement Under Consideration. Future versions of AU Core will develop and test approaches to addressing Last Updated.
Procedure completed event Procedure name AU Core Procedure Procedure.code
Clinical indication AU Core Procedure Procedure.reasonCode | Procedure.reasonReference[x]
Body site/laterality AU Core Procedure Procedure.code
Date performed AU Core Procedure Procedure.performed[x] | Procedure.performedDateTime
Comment AU Core Procedure Procedure.note
Vaccination administered event Vaccine name AU Core Immunization Immunization.vaccineCode
Sequence number AU Core Immunization Immunization.protocolApplied.doseNumber[x]
Date of administration AU Core Immunization Immunization.occurenceDateTime
Comment AU Core Immunization Immunization.note
Tobacco smoking summary Overall status AU Core Smoking Status Observation
Last updated - - This AUCDI element is a Future Candidate Requirement Under Consideration. Future versions of AU Core will develop and test approaches to addressing Last Updated.
Medication use statement Medication name AU Core MedicationStatement | AU Core Medication MedicationStatement.medication[x] | Medication.code

Development and testing of AU Core MedicationStatement profile is planned for AU Core R2.

See Medicine Information guidance.
Clinical indication AU Core MedicationStatement MedicationStatement.reasonCode | MedicationStatement.reasonReference
Strength AU Core MedicationStatement | AU Core Medication MedicationStatement.medication[x] | Medication.code | Medication.ingredient
Form AU Core MedicationStatement | AU Core Medication MedicationStatement.medication[x] | Medication.form
Dose amount AU Core MedicationStatement MedicationStatement.dosage.doseAndRate
Route of administration AU Core MedicationStatement MedicationStatement.dosage.route
Dose timing AU Core MedicationStatement MedicationStatement.dosage.timing
Comment AU Core MedicationStatement MedicationStatement.note
Date of assertion - - Mapping of this element will be undertaken as part of the work on the AU Core MedicationStatement profile, planned for AU Core R2.
Sex and gender summary Sex assigned at birth AU Core Patient Patient.extension.where(url='http://hl7.org/fhir/StructureDefinition/individual-recordedSexOrGender') The Person Recorded Sex or Gender extension is profiled by AU Core Sex Assigned At Birth (RSG) to represent the concept of Sex assigned at birth.
Gender identity AU Core Patient Patient.extension.where(url='http://hl7.org/fhir/StructureDefinition/individual-genderIdentity')
Pronoun/s AU Core Patient Patient.extension.where(url='http://hl7.org/fhir/StructureDefinition/individual-pronouns')
Last updated - - This AUCDI element is a Future Candidate Requirement Under Consideration. Future versions of AU Core will develop and test approaches to addressing Last Updated.
Encounter – clinical context Reason for encounter AU Core Encounter Encounter.reasonCode | Encounter.reasonReference
Modality AU Core Encounter Encounter.class
Measurements and vital signs Blood pressure Systolic pressure AU Core Blood Pressure Observation
Diastolic pressure AU Core Blood Pressure Observation
Date/Time of measurement AU Core Blood Pressure Observation.effectiveDateTime
Pulse Rate AU Core Heart Rate Observation
Date/Time of observation AU Core Heart Rate Observation.effectiveDateTime
Body temperature Temperature AU Core Body Temperature Observation
Date/Time of measurement AU Core Body Temperature Observation.effectiveDateTime
Respiration Rate AU Core Respiration Rate Observation
Date/Time of observation AU Core Respiration Rate Observation.effectiveDateTime
Body height Height / Length AU Core Body Height Observation
Date/Time of measurement AU Core Body Height Observation.effectiveDateTime
Body weight Weight AU Core Body Weight Observation
Date/Time of measurement AU Core Body Weight Observation.effectiveDateTime
Waist circumference Waist circumference AU Core Waist Circumference Observation
Date/Time of measurement AU Core Waist Circumference Observation.effectiveDateTime
Biomarkers Lipids HDL cholesterol AU Core Pathology Result Observation Observation
LDL cholesterol AU Core Pathology Result Observation Observation
Total cholesterol AU Core Pathology Result Observation Observation
Triglycerides AU Core Pathology Result Observation Observation
Date/Time of measurement AU Core Pathology Result Observation Observation.effectiveDateTime
Haemoglobin A1c (HbA1c) HbA1c AU Core Pathology Result Observation Observation
Date/Time of measurement AU Core Pathology Result Observation Observation.effectiveDateTime
Estimated glomerular filtration rate (eGFR) eGFR AU Core Pathology Result Observation Observation
Date/Time of measurement AU Core Pathology Result Observation Observation.effectiveDateTime
Urine albumin-creatinine ratio (uACR) uACR AU Core Pathology Result Observation Observation
Date/Time of measurement AU Core Pathology Result Observation Observation.effectiveDateTime