Proposed resolution: Remove the "reported" element Add a new "primarySource" element Definition - An indication that the content of the report is based on information from the person who administered the vaccine. This reflects the context under which the data was originally recorded. It reflects the "reliability" of the content. Type - boolean Control - 1..1 (element is required) We will not split into "administration" and "statement" resources as medication administration is Add a new "reportOrigin" element Definition - The source of the data when the report of the immunization event is not based on information from the person who administered the vaccine. Type - code Other provider, written record, parent/guardian/patient recall, school record Control - 0..1 Should not be populated if primarySource = True, will not be required even if primarySource = False