Dutch National Patient ID (BSN) & Dicom objects. Final report of the joint IHE Nederland-Nictiz Expert WG. For the introduction of the BSN for cross-enterprise communication agreement has to be reached on how to use this number in the various standards. While for HL7 and Edifact the direction is clear, for the DICOM standard little has been done so far, partly due to the fact that a Dutch DICOM organisation does not exist. Even in the IHE profiles there is no definition on how to handle a situation with various patient ID’s. This notwithstanding the fact that IHE is active in cross-enterprise settings.