http://hl7.org/fhir/StructureDefinition/cqf-targetInvariant|5.2.0

DEPRECATED: Use the `targetConstraint` extension instead. Specifies an invariant that is enforced on instantiated resources. This extension can be applied to any element of a definitional resource (such as ActivityDefinition or Measure) and indicates that the invariant should be enforced on resources that are instantiated from the definition. For example, this extension can be used to define a constraint such as `numerator count must be less than or equal to denominator count`.

Structure JSON Dependencies FHIRSchema Other Versions Dependant (0)Elements Summary

Name	Card	Type	Description & Constraints
Extension	0..*		A constraint on the target resource
extension *	1..1	Extension	Unique identifier
extension	?..0
url	?..?	uri
value[x] *	1..?
valueId *	1..?	id
extension	0..1	Extension	Why the invariant is defined
extension	?..0
url	?..?	uri
value[x] *	1..?
valueString *	1..?	string
extension *	1..1	Extension	error \| warning
extension	?..0
url	?..?	uri
value[x] *	1..?		ConstraintSeverity (required)
valueCode *	1..?	code	ConstraintSeverity (required)
extension *	1..1	Extension	The invariant expression
extension	?..0
url	?..?	uri
value[x] *	1..?
valueExpression *	1..?	Expression
url	?..?
value[x]	0..0