Julia Rose Walker

Characterizing Potentially Preventable Cancer- and Chronic Disease–Related Emergency Department Use in the Year After Treatment Initiation: A Regional Study

PURPOSE As new quality metrics and interventions for potentially preventable emergency department (ED) visits are implemented, we sought to compare methods for evaluating the prevalence and costs of potentially preventable ED visits that were related to cancer and chronic disease among a commercially insured oncology population in the year after treatment initiation. METHODS We linked SEER records in western Washington from 2011 to 2016 with claims from two commercial insurers. The study included patients who were diagnosed with a solid tumor and tracked ED utilization for 1 year after the start of chemotherapy or radiation. Cancer symptoms from the Centers for Medicare & Medicaid Services metric and a patient-reported outcome intervention were labeled potentially preventable (PpCancer). Prevention Quality Indicators of the Agency for Healthcare Research and Quality were labeled potentially preventable-chronic disease (PpChronic). We reported the primary diagnosis, all diagnosis field coding (1 to 10), and 2016 adjusted reimbursements. RESULTS Of 5,853 eligible patients, 27% had at least one ED visit, which yielded 2,400 total visits. Using primary diagnosis coding, 49.8% of ED visits had a PpCancer diagnosis, whereas 3.2% had a PpChronic diagnosis. Considering all diagnosis fields, 45.0%, 9.4%, and 18.5% included a PpCancer only, a PpChronic only, and both a PpCancer and a PpChronic diagnosis, respectively. The median reimbursement per visit was

Patient engagement on claims-registry reports of cost and quality.

735 (interquartile ratio,

Costs of potentially preventable emergency department use during cancer treatment: A regional study.

194 to

Patterns of surveillance testing in commercially insured patients with breast cancer across provider types: A regional study.

1,549). CONCLUSION The prevalence of potentially preventable ED visits was generally high, but varied depending on the diagnosis code fields and the group of codes considered. Future research is needed to understand the complex landscape of potentially preventable ED visits and measures to improve value in cancer care delivery.