Organization, e.g. Health Provider or Insurance Company. Functional requirements taken from Health and Care Information models (Zorginformatiebouwsteen) HealthProvider v3.1.1 (release 2017) and Payer v3.1 (release 2017) via the Basic Care Data Set (Basisgegevensset Zorg 1.0). Names and addresses are also in compliance with HL7 V3 Basic Components. Every instantiation of an Organization is a top level organization or a part of an (top level) organization, e.g. Department of Radiology.