Fhir (Fast Healthcare Interoperability Resource) is a standard that defines the data formats and elements for exchanging electronic health records across the health processes, which is created and maintained by HL7. It enables to send the data across different health IT systems and receive it in a readable and usable manner. It enables instant incorporation of medical records from different facilities which makes a complete EHR record accessible to patient, practitioner , healthcare organizations and implementers. It supports REST architecture and employs other web technologies like JSON, HTTPS, XML, OAuth. Due to these and many other benefits of FHIR, most EHR vendors are adopting and implementing HL7 FHIR® in health information technology. The ONC recently reported, 10 health IT developers like Allscripts, Epic, Cerner, GE, eClinicalWorks, Meditech and others are already using FHIR, all systems that 1upHealth supports as well. These EHRs create the largest market share across hospitals and clinicians and therefore patient access too.
Ten EHRs with the Largest Market Share | API standard Referenced | % of Hospitals Report Using | % of Clinicians Report Using |
---|---|---|---|
Allscripts | FHIR® Release 2 | 5% | 9% |
athenahealth | FHIR® Release 2 | <1% | 5% |
Cerner | FHIR® Release 2 | 21% | 5% |
CPSI | FHIR® Release 2 | 10% | — |
eClinicalWorks | FHIR® Release 3 | — | 7% |
Epic | FHIR® Release 2 | 21% | 27% |
GE | FHIR® Release 2 | <1% | 5% |
MEDHOST | FHIR® Release 2 | 5% | — |
MEDITECH | FHIR® Release 2 | 20% | <1% |
NextGen | FHIR® Release 2 | <1% | 6% |
Total | 82% | 64% |
Fhir was published as a “Draft Standard for Trial Use (DSTU) by HL7 in February, 2014. As a part of Agronaut project, funding and political will was provided to publish FHIR® implementation guides. Since then it has been gaining attraction.

This google trends graph shows that FHIR® has been catching a lot of interest throughout the nation after its advent. There are many organizations which are now interested in FHIR® and its specifications.
With the third release of the FHIR® specification in 2017, FHIR® has significant adoption with many applications and FHIR® interfaces being built. Because FHIR® uses the same RESTful API technology that familiar APIs of Google, Facebook, Twitter and other tech companies use, it’s very simple to get started.
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