Litaker JR, et al. - In this secondary data analysis, researchers investigated the influence of opioid abuse, adverse events, poisoning, and dependence on emergency department utilization for people who bought health insurance under the Affordable Care Act in Central Texas from a community-based health maintenance organization. Eligible participants were those who purchased health insurance from Sendero Health Plans in calendar years 2016, 2017, and 2018, and had both an emergency department encounter and an opioid-associated International Classification of Disease, 10th Edition, Clinical Management diagnosis. Per 100,000-member Sendero population, the estimated incidence of new claims was 67.1 in 2016, 64.5 in 2017, and 62.6 in 2018. Per 100,000-member Sendero population, the estimated ratio of unique emergency department encounters was 95.9 in 2016, 82.6 in 2017, and 66.5 in 2018. Policy makers and officials can use health insurance claims data from a community-based health plan in order to extract local information regarding the influence of opioid abuse, adverse events, poisoning, and dependence in Central Texas because national data may not represent the local influence of this epidemic.