Key Takeaways HL7 is the standard format labs and hospitals use to send patient and test data between different systems, like from a lab’s LIS to a hospital’s electronic health record. HL7 v2 is the older, text-based version and is still the most common one used for sending lab orders and results today. FHIR is […] The post What Is the HL7 Data Format (And Why It Matters for Clinical Labs)?