Path
instant
Id
instant
Cardinality
0 - *
Definition
An instant in time - known at least to the second
Comment
Note: This is intended for where precisely observed times are required, typically system logs etc., and not human-reported times - for them, see date and dateTime (which can be as precise as instant, but is not required to be) below. Time zone is always required
Constraint
All FHIR elements must have a @value or children unless an empty Parameters resource