NASTAD | Bridging Science, Policy, and Public Health 444 North Capitol Street NW, Suite 339 Washington, DC 20001 (202) 434.8090 NASTAD.org 1 Background Health systems data sources have become increasingly important for public health programs in recent years, both because of insurance coverage expansion under the Affordable Care Act (ACA) and because of incentive programs and federal investments that help providers and programs build their data and informatics capacity. Increasingly, there are opportunities for public health programs to leverage health systems data – including Medicaid claims, All Payer Claims Databases, and Electronic Health Records(EHRs)/Health Information Exchanges (HIEs) – to augment public health surveillance and ultimately outcomes for a number of health issues, including hepatitis C (HCV).