I am developing a ionic app and have to use HL7 v3.
I tried searching for it, but couldn't found anything much on the technical side. so, my question is:
Cheers!
V3 is most likely referring to HL7 Version 3. Version 2.5.1 is currently the most widely implemented version, but more and more systems and organizations are upgrading to V3. Implementing is the same process. You can find various HL7 version documentation here: http://www.hl7.org/implement/standards/product_section.cfm?section=1&ref=nav