This is the set of resources that conform to both Best Practice (http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice) and Best Practice (http://hl7.org/fhir/StructureDefinition/elementdefinition-bestpractice).
| Name | Flags | Card. | Type | Description & Constraints |
|---|---|---|---|---|
  Extension | 0..1 | Mark a warning invariant as 'best practice' ele-1: All FHIR elements must have a @value or children ext-1: Must have either extensions or value[x], not both | ||
  url | 1..1 | uri | identifies the meaning of the extension | |
  value[x] | 1..1 | Value of extension Binding: ?? (extensible) ele-1: All FHIR elements must have a @value or children | ||
 valueBoolean | boolean | |||
  valueCodeableConcept | CodeableConcept | |||
| Documentation for this format | ||||