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

Identifies the maximum number of decimal places that may be specified for the data element.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Maximum digits after decimal
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueInteger *
1..?integer