SDC: StructureDefinition-sdc-questionnaire-extr-defn-intro

Scope and Usage

This profile adds additional constraints and extensions to the base SDC Base Questionnaire Profile that support extracting information from questionnaire responses and producing other FHIR resources. This profile identifies which core elements and extensions must be supported when using the Definition-based extraction mechanism and highlights other elements that, while not required, may be relevant to the questionnaire response data extraction use-case. Further information on how this use-case is implemented as well as guidance on the elements and extensions included in the profile can be found on the Data Extraction page.

At present, Questionnaire.item.definition does not repeat, however there are use-cases where the same element could correspond to a data element in multiple data models. Issue FHIR-48941 proposes changing this. It will either happen by making a breaking change to the resource and changing the cardinality from 0..1 to 0..* or by adding a standard extension to allow capturing additional repetitions. In either case, we expect this profile to be updated, either to support an inter-version extension allowing the additional repetitions or adding support for the new standard extension. This will allow the same item to be used in multiple extractions.