This assignment explores two prevalent health care classification systems utilized in Australia: activity-based costing and diagnosis-related groups (DRGs). It delves into how activity-based costing links billable activities to international standards like ICD-10, streamlining billing processes. Additionally, the assignment analyzes the Australian Refined DRG Classification System, a detailed version of DRGs grouped into seven key categories based on healthcare facility type. The impact and monitoring of these systems are also discussed.