This page is part of the FHIR Specification (v4.3.0: R4B - STU). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R5R4BR4R3
first First when the target list is being assembled, the items for this rule go first. If more than one rule defines a first item (for a given instance of mapping) then this is an error.
share Share the target instance is shared with the target instances generated by another rule (up to the first common n items, then create new ones).
last Last when the target list is being assembled, the items for this rule go last. If more than one rule defines a last item (for a given instance of mapping) then this is an error.
collate Collate re-use the first item in the list, and keep adding content to it.
Explanation of the columns that may appear on this page:
Lvl A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow
code system hierarchy - see Code System for further information
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code