Formal health classifications facilitate the collection of significant quantities of health data in the form of clinical codes. The International Statistical Classification of Diseases and Related Health Problems, Tenth Revision, Australian Modification (ICD-10-AM) is used in Australia (and many countries around the world) primarily to report information about admitted patients’ diagnoses while the treatment provided to the patient is reported using the Australian Classification of Health Interventions. The Australian Refined Diagnosis Related Groups usethese clinical codes to group patients into like categories and represent another important health classification that is widely used by managers of health information in government departments, hospitals and health funds. In Australia, the Independent Hospital Pricing Authority is responsible for managing these classifications (IHPA, 2019). Health information managers (HIMs) and clinical coders (CCs) are responsible for the clinical coding of admitted patient records, thereby creating the bulk of these health data. The data are reported to state and federal government departments from where they are made available for use by multiple stakeholders, such as researchers, program managers and funding model developers. Within individual hospitals, researchers, funding managers and other stakeholders will also access these data to inform their work.
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