Date

Question with a date answer (valueDate).

It uses the FHIR date data type, which accepts YYYY, YYYY-MM, or YYYY-MM-DD as inputs, e.g. 2018, 1973-06, or 1905-08-23.

Basic usage

Questionnaire-only

With Response

Advanced usage

Calculations

tip

The date and dateTime component has built in validation based on the FHIR date and dateTime data types respectively https://hl7.org/fhir/R4/datatypes.html#date.

SDC Supported extensions

Code	Usage
variable	http://hl7.org/fhir/StructureDefinition/variable
initialExpression	http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-initialExpression - InitialExpression should evaluate to a date value.
calculatedExpression	http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-calculatedExpression - CalculatedExpression should evaluate to a date string of YYYY, YYYY-MM or YYYY-MM-DD.
enableWhenExpression	http://hl7.org/fhir/uv/sdc/StructureDefinition/sdc-questionnaire-enableWhenExpression
rendering-style	http://hl7.org/fhir/extensions/StructureDefinition-rendering-style.html
rendering-markdown	http://hl7.org/fhir/extensions/StructureDefinition-rendering-markdown.html
rendering-xhtml	http://hl7.org/fhir/StructureDefinition/rendering-xhtml
hidden	http://hl7.org/fhir/StructureDefinition/questionnaire-hidden
entryFormat	http://hl7.org/fhir/StructureDefinition/entryFormat
required	item.required
repeats	item.repeats
readOnly	item.readOnly
minValue	http://hl7.org/fhir/StructureDefinition/minValue
maxValue	http://hl7.org/fhir/StructureDefinition/maxValue
initial	item.initial
enableWhen	item.enableWhen
enableBehavior	item.enableBehavior
text	item.text