Unballoted STU Update publication of HL7 FHIR® Implementation Guide: Payer Data Exchange (PDex) Payer Network, Release 1 – US Realm STU1.2
Learn more at https://www.hl7.org/implement/standards/product_brief.cfm?product_id=548 or see the specification at http://hl7.org/fhir/us/davinci-pdex-plan-net/STU1.2