 Health Directorate Australia manages a thesaurus of health and human services concepts, which is used to improve discoverability of content through its websites and services. It has consumer rather than medical or clinical focus. It's also used as a mechanism to link to other data sources, such as publicly available medicine data sets. Updating these data sets once a month allows us to display the most up-to-date comprehensive information about medicines registered for sale in Australia. This presentation shows how we manage this and how we map or link between the different data sets. A publicly available version of the thesaurus is also available for individuals or organisations to query to facilitate research, such as for use in developing surveys or interviewing purposes.