From Reading to Writing: Next Steps for Patient Data Exchange and Interoperability

Informatics Professor December 21, 2021
William Hersh, MD

The rationale and implementation for reading data from the electronic health record (EHR) and other clinical sources is relatively simple and straightforward. Especially now enshrined into law in the US by the 21st Century Cures Rule, and standardized by the FHIR application programming interface (API), accessing data for reading by clinicians, patients, and others is here to stay.

Writing data to the EHR or other clinical information systems is a little more complicated. As in all aspects of informatics, the technology part is relatively simple, as activating the API in the reverse direction is not difficult technologically. But writing data into the EHR and other systems raises a number of issues. Earlier this year, the Office of the National Coordinator...

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