Electronic Health Records (EHRs) and interoperability are the two major drivers of technology in the healthcare segment. Interoperability is where the use of HL7 is highly significant. To quickly understand how HL7 works, you can relate it to the process of the Internet linking millions of websites. Each of them might be developed using different languages such as PHP, .NET or WordPress (among many other platforms) but all follow the same W3C standards. Similarly, HL7 protocols define a framework that governs how electronic health data can be retrieved, shared as well as integrated. HL7 uses a number of standards such as application standards, messaging standards, etc. that follow a set of HL7 protocols for packing and communicating between different systems. It achieves this by defining the language, data type as well as structure of the data and how it must be packaged. More than 90% of the major healthcare facilities in the US use HL7 and it’s widely adopted in over 27 countries, making it a truly global standard. Many healthcare organizations turn to HL7 integration specialists like iTech India, to integrate various existing systems and interfaces that are already running in a hospital or medical facility and also correct the prior HL7 implementation outcomes. The HL7 standard has 2 different versions – Version 2 and Version 3. The 2.3 or 2.3.1 are most commonly used while V3 has only a smaller usage since it is not backwardly compatible with systems using the V2 version.. HL7 is now working on HL7 FHIR (Fast Health Interoperable Resources) that will be easier to implement since it uses modern API technology. APIs (application programming interface) is driving digital transformation outside of healthcare but there are some cybersecurity concerns which is inhibiting its wider adoption in Healthcare.