Provides agreed definitions of terms used for health concept representation in Australia and a coherent vocabulary of the central concepts of terminology.RECONFIRMATION NOTICETechnical Committee IT-014 has reviewed the content of this publication and in accordance with Standards Australia procedures for reconfirmation, it has been determined that the publication is still valid and does not require change.Certain documents referenced in the publication may have been amended since the original date of publication. Users are advised to ensure that they are using the latest versions of such documents as appropriate, unless advised otherwise in this Reconfirmation Notice.Approved for reconfirmation in accordance with Standards Australia procedures for reconfirmation on 13 October 2015.The following are represented on Technical Committee IT-014:Australasian College of Health InformaticsAustralian College of NursingAustralian Healthcare and Hospitals AssociationAustralian Information Industry AssociationConsumers Federation of AustraliaCSIRODepartment of Health (WA)Engineers AustraliaHealth Informatics Society of AustraliaHL7 AustraliaNEHTANSW Ministry of HealthQueensland HealthUniversity of Western SydneyVictorian Department of Health and Human Services