Information about who authored this set of definitions The name of FHIR resource Definitions of the elements from FHIR itself (only in definitions published by HL7) Definitions of the extensions to the resource The definition of an element defined in FHIR itself The definition of an extension to a FHIR resource The name of the element in FHIR (using dotted notation, i.e. Person.Name) The code for the extension The path to the FHIR element (i.e. the FHIR name) that the extension applies to The cardinality of this extension Specifying a minimum cardinality of 1 means that if the source system declares that it conform to the set of extensions containing this extension, it must be included in the resource The path to the FHIR element (i.e. the FHIR name) that the extension applies to Whether the use of the extension is mandatory, conditional, optional, or prohibited. If the extension is conditional, the conditions must be described in the comments field. This field overlaps with the cardinality, and must be consistent with it The possible types of the extension. This must be a valid FHIR data type as desribed above, or "Extension: x,y,z" which indicates that the extension codes x,y, and z will be contained in the extension Whether the extension must be understood by any system reading the resource. There is 3 possible values: "true" - the extension must be understood, "false" - the extension does not need to be understood, and "sender" - the sender can decide whether the extension needs to be understood For the types CodeableConcept and Coding. Terminologies A formal statement of the meaning of the content of the field Discussion of the reason for the extension / what use cases it was defined to handle Additional other information about the extension, including information concerning it's conditionality if indicated in the conformance field The formal mapping from this extension to the RIM. Required for HL7 defined extensions, but may be optional in other contexts Mapping to a v2 segment/field/etc, if desired and appropriate Outstanding issues yet to be resolved