http://hl7.org/fhir/StructureDefinition/maxValue|5.2.0

The inclusive upper bound on the range of allowed values for the data element.

Name	Card	Type	Description & Constraints
Extension	0..1		Must be <= this value
extension	?..0
url	?..?
value[x] *	1..?
valueDate *	1..?	date
valueDateTime *	1..?	dateTime
valueTime *	1..?	time
valueDecimal *	1..?	decimal
valueInteger *	1..?	integer
valueQuantity *	1..?	Quantity