http://hl7.org/fhir/StructureDefinition/resource-pertainsToGoal|4.0.1

Indicates that the resource is related to either the measurement, achievement or progress towards the referenced goal. For example, a Procedure to exercise pertainsToGoal of losing weight.
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/Reference
Extension.value[x].targetProfilehttp://hl7.org/fhir/StructureDefinition/Goal