STU Publication of HL7 FHIR Implementation Guide: mCODE Release 1 – US Realm
Learn more at  
https://www.hl7.org/implement/standards/product_brief.cfm?product_id=527  or the specification at http://hl7.org/fhir/us/mcode/STU1. 
Learn more at  
https://www.hl7.org/implement/standards/product_brief.cfm?product_id=527  or the specification at http://hl7.org/fhir/us/mcode/STU1.