Journal
HEALTH SERVICES RESEARCH
Volume 50, Issue 6, Pages 1910-1926Publisher
WILEY
DOI: 10.1111/1475-6773.12293
Keywords
Health insurance reimbursement; utilization; health policy; CPT codes; computed tomography; fee-for-service plans
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Objective. To quantify changes in private insurance payments for and utilization of abdominal/pelvic computed tomography scans (CTs) after 2011 changes in CPT coding and Medicare reimbursement rates, which were designed to reduce costs stemming from misvalued procedures. Data Sources. Truven Health Analytics MarketScan Commercial Claims and Encounters database. Study Design. We used difference-in-differences models to compare combined CTs of the abdomen/pelvis to CTs of the abdomen or pelvis only. Our main outcomes were inflation-adjusted log payments per procedure, daily utilization rates, and total annual payments. Data Extraction Methods. Claims data were extracted for all abdominal/pelvic CTs performed in 2009-2011 within noncapitated, employer-sponsored private plans. Principal Findings. Adjusted payments per combined CTs of the abdomen/pelvis dropped by 23.8 percent (p <.0001), and their adjusted daily utilization rate accelerated by 0.36 percent (p =.034) per month after January 2011. Utilization rate of abdominal-only or pelvic-only CTs dropped by 5.0 percent (p <.0001). Total annual payments for combined CTs of the abdomen/pelvis decreased in 2011 despite the increased utilization. Conclusions. Private insurance payments for combined CTs of the abdomen/pelvis declined and utilization accelerated significantly after 2011 policy changes. While growth in total annual payments was contained in 2011, it may not be sustained if 2011 utilization trends persist.
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