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Evaluating VA patient-level expenditures: decision support system estimates and Medicare rates
Ann M Hendricks1, Theodore R Lotchin, Jill Hutterer
1Health Economics Program, Center for Health Quality, Outcomes and Economic Research, Edith Nourse Rogers Memorial Veterans Health Administration Hospital, 200 Springs Road, Bedford, MA 01730, USA. Ann.Hendricks@med.va.gov
Medical Care
|May 30, 2003
Summary
Veterans Health Administration (VA) cost estimates generally exceeded Medicare reimbursement, with significant differences for specific procedures like inguinal hernia repair. Data limitations hinder direct cost comparisons between VA and Medicare systems.
Area of Science:
- Health Services Research
- Healthcare Economics
- Health Informatics
Background:
- The Veterans Health Administration (VA) utilizes a Decision Support System (DSS) for patient-level cost estimation.
- Medicare provides allowable reimbursement rates for healthcare services.
- Accurate cost comparison is crucial for healthcare management and resource allocation.
Purpose of the Study:
- To conduct preliminary comparisons between VA DSS patient-level cost data and Medicare allowable reimbursement amounts.
- To identify discrepancies and assess the comparability of cost data between the two healthcare systems.
Main Methods:
- Comparison of VA DSS cost estimates with Medicare allowable reimbursements for specific procedures and diagnosis-related groups (DRGs) in fiscal year 1999.
- Inclusion of adjustments for disproportionate share, capital, indirect medical education, geographic variations, and professional fees in Medicare reimbursement calculations.
- Analysis covered outpatient inguinal hernia and cataract operations, and inpatient stays for chronic obstructive pulmonary disease, simple pneumonia, diabetes, and detoxification across six VA facilities.
Main Results:
- Average VA DSS cost estimates were generally higher than Medicare allowable reimbursements for the selected care types.
- The most substantial cost difference was observed for inguinal hernia repair, with VA costs significantly exceeding Medicare reimbursements ($3253 vs. $1506).
- Comparisons for detoxification DRGs (434, 435) were limited due to differences in how VA data captured acute and non-acute care versus Medicare's acute-only rates.
Conclusions:
- Detailed VA DSS data records are necessary for meaningful comparisons with non-VA reimbursement amounts like Medicare's.
- Accurate non-VA reimbursement estimates require including all professional services, such as those from anesthesiologists and consultants.
- Improved VA data granularity, specifically separating acute and non-acute care, would enhance comparative analysis capabilities.
- Current data limitations prevent definitive "make or buy" decisions regarding healthcare services.