Statistics are presented for the time period 2020-21 to 2024-25 for the majority of tables and are available in Excel format.
Following consultation with stakeholders, two versions of the AR-DRG table are included in both annual reports: a version which is based on all separations during the most recent financial year and secondly, a version based on acute separations only (i.e. excludes admitted sub-acute, non-acute and mental health activity).
Hospital Casemix Protocol Annual Report
The preliminary HCP 2024-25 Annual Report summarises data collected from private health insurers through HCP1. Tables include statistics related to Care Type, Completeness, Charge Components, Patient Age Groups, Medical services and Australian Refined - Diagnosis Related Groups (available for 2024-25 only) for privately insured separations in both public and private hospitals.
The preliminary 2024-25 HCP Annual Report is available to download online. Previous financial years from 2010-11 onwards are also available to download online.
Private Hospital Data Bureau Annual Report
The preliminary PHDB 2024-25 Annual Report summarises data collected from private hospitals through PHDB. Tables include statistics related to Care Type, Completeness, Charge Components, Funding source, Patient Age Groups and Australian Refined - Diagnosis Related Groups (available for 2024-25 only) for private hospital separations.
The preliminary 2024-25 PHDB Annual Report is available to download online. Previous financial years from 2010-11 onwards are also available to download online.
Additional Information
To enable greater consistency between HCP and PHDB Annual Report statistics and figures published in the Australian Institute of Health and Welfare’s (AIHW) Australian Hospital Statistics annual reports, the hospital type (i.e. public or private) has been adjusted in a small number of cases. Further information is available in each Annual Report’s Explanatory notes section.
Although improvements have been made, the Department notes there is an ongoing issue in the HCP (hospital to insurer), HCP1 (insurer to Department) and particularly PHDB data involving the supply of non-admitted service data such as those involving patients receiving services as outpatients or visited by community nurses at home. These relate to the AR-DRGs (version 11.0): U60Z (Mental Health Treatment W/O ECT, Sameday) and V62B (Alcohol Use and Dependence, Minor Complexity).
As outlined in the relevant data specifications, HCP, HCP1 and PHDB data should only contain admitted patient care episodes. A relatively small number of these additional non-admitted records are currently included in both the HCP and PHDB Annual Reports as there is insufficient information available to enable the Department to exclude them. The Department continues to consult with hospitals, health insurers and software vendors to ensure future data submissions are consistent with the scope of each data collection and contain admitted episodes only.
The Department also notes the under-reporting of dialysis and chemotherapy related separations in HCP1 and PHDB which primarily impacts AR-DRGs (version 11.0): L61Z (Haemodialysis), L67C (Other Kidney and Urinary Tract Disorders, Minor Complexity) and R63Z (Pharmacotherapy for Neoplastic Disorders). In the HCP annual report, the Haemodialysis and Chemotherapy undercounts are particularly notable for public hospitals and might be related to missing clinical data for these types of separations in HCP1 causing them to be grouped as an error (960Z) AR-DRG. AR-DRGs Z64A and Z64B (Other Factors Influencing Health Status, Major and Minor Complexity) are also under-reported in HCP1. Also noteworthy is the over-reporting of I69B (Bone Diseases and Arthropathies, Minor Complexity) in PHDB and rehabilitation separations in HCP1 which primarily impacts AR-DRG (version 9.0): Z60B Rehabilitation, Minor Complexity.
Any queries regarding these matters should be emailed to casemix.queries@health.gov.au.