http://hl7.org/fhir/StructureDefinition/timing-exact|4.0.1

If true, indicates that the specified times, frequencies, periods are expected to be adhered to as precisely as possible. If false, indicates that a typical degree of variability based on institutional and/or patient convenience is acceptable.
NameFlagsCardTypeDescription & Constraints
Extension
0..1Whether specified times must be followed as closely as possible
 
extension
?..0
 
url
?..?
 
value[x] *
1..?
 
 
valueBoolean *
1..?boolean