Hospital Casemix Protocol (HCP) annual report
Tables include statistics related to care type, completeness, charge components, patient age groups, medical services and Australian Refined – Diagnosis Related Groups (available for 2017–18 only) for privately insured separations in public and private hospitals.
Private Hospital Data Bureau (PHDB) annual report
Tables include statistics related to care type, completeness, charge components, funding source, patient age groups and Australian Refined – Diagnosis Related Groups (available for 2017–18 only) for private hospital separations.
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 (that is, public or private) has been adjusted in a small number of cases. Further information is available in each annual report’s explanatory notes section.
Minor adjustments to the methodology used to calculate statistics presented in the HCP and PHDB annual reports may result in differences when compared to previously published annual reports.
The department notes there is an issue in the HCP (hospital to insurer), HCP1 (insurer to department) and 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. In particular, these relate to the AR-DRGs (version 8.0):
- U60A (Mental Health Treatment W/O ECT, Sameday, Major Complexity)
- U60B (Mental Health Treatment W/O ECT, Sameday, Minor Complexity)
- V65Z (Treatment for Alcohol Disorders, Sameday)
- Z63A (Other Follow Up After Surgery or Medical Care, Major Complexity)
- Z63B (Other Follow Up After Surgery or Medical Care, Minor Complexity).
Note, other AR-DRGs are also affected by this problem.
As outlined in the relevant data specifications, HCP, HCP1 and PHDB data should only contain admitted patient care episodes. Unfortunately, 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 will 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 d also notes the:
- under-reporting of dialysis related separations in HCP1 and PHDB which primarily impacts AR-DRGs (version 8.0): L61Z (Haemodialysis) and L67C (Other Kidney and Urinary Tract Disorders, Minor Complexity)
- over-reporting of rehabilitation separations in HCP1 which primarily impacts AR-DRG (version 8.0): Z60B Rehabilitation, Minor Complexity.
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