Over the past decade, a number of federal health IT policies have sought to advance the interoperable exchange of electronic health information (EHI) between health care providers. In response to these federal initiatives, health care organizations adopted a number of methods to exchange information and upgraded to 2015 Edition certified electronic health record (EHR) technology. The 21st Century Cures Act (Cures Act) sought to improve the flow and exchange of EHI by defining "information blocking" and established penalties for those who engage in this practice. The Cures Act also sought to enhance the usability of health IT and the creation of a Trusted Exchange Framework and Common Agreement (TEFCA) to improve data sharing between health information networks. As the Office of the National Coordinator for Health IT (ONC) and the health IT industry begin to implement these policies, it will be important to track their impacts. This data brief uses nationally representative survey data from the 2019 American Hospital Association IT Supplement to describe the methods hospitals used to exchange or search for EHI. It also presents hospitals' participation rates in health information exchanges (HIEs), variation in HIE participation by hospital type, and barriers to interoperability.
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