Related Terms
HL7
FHIR
EMR integration
See Also
The same standards let add-on tools read your schedule and write updates back to the chart. See how EMR integrations work in practice.
ABOUT THIS ENTRY
Category Core: EMR/EHR
Reading time: 1 min
Updated: Sep 2026
Healthcare Interoperability
Definition
Healthcare interoperability is the ability of different health IT systems, such as EHRs, labs, pharmacies, and patient apps, to exchange data and use it without anyone retyping it.
Why the distinction matters
When systems can't share data, staff fill the gap by hand. A referral shows up as a 12-page fax, someone rekeys the med list, and one typo follows the patient into the next chart. Interoperability removes that re-entry step.
It runs on shared standards. HL7 v2 messages still carry most lab results and admit, discharge, and transfer alerts. FHIR uses web APIs to pull smaller pieces of data on demand.
Example
A family practice refers a patient to a cardiologist. With interoperable systems, the referral, recent labs, and problem list land in the cardiologist's EHR as structured fields. The front desk there doesn't scan a fax, and the doctor sees the same allergy list the family practice recorded.
Frequently Asked
-
Why can't my EHR share records with the hospital's EHR?
Usually the two systems use different formats, or no interface was ever set up between them. Shared standards like HL7 and FHIR, plus a live connection, are what let the records move.
-
What's the difference between interoperability and integration?
Integration is one connection between two specific systems, like a texting tool and your EHR. Interoperability is the wider ability of many systems to share data because they follow the same standards.
-
Is my practice required to share patient data electronically?
The 21st Century Cures Act bars information blocking, so providers can't unreasonably hold back electronic health data when a patient or another provider asks for it. There are listed exceptions, such as privacy and security.