date
Base StructureDefinition for date Type: A date or partial date (e.g. just year or year + month). There is no time zone. The format is a union of the schema types gYear, gYearMonth and date. Dates SHALL be valid dates.
Primitive data type in FHIR R4. Maturity: Not stated.
Elements
| Element | Type | Cardinality | Description |
|---|---|---|---|
id | string | 0..1 | xml:id (or equivalent in JSON) |
extension | Extension | 0..* | Additional content defined by implementations |
value | http://hl7.org/fhirpath/System.Date | 0..1 | Primitive value for date |
Reference
Official FHIR R4 specification: date.