Extension 
url 
value[x] Binding: ?? (required)
Documentation for this formatThis is the set of resources that conform to either of the profiles Background Color (http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-BackgroundColor-extension) and Background Color (http://hl7.org/fhir/us/insurance-card/StructureDefinition/C4DIC-BackgroundColor-extension). E.g. what you have to deal with if you get resources conforming to one of them
| Name | Flags | Card. | Type | Description & Constraints Filter: |
|---|---|---|---|---|
| Extension | 0..* | Background Color | ||
| url | 1..1 | uri | identifies the meaning of the extension | |
| value[x] | 1..1 | CodeableConcept | Value of extension Binding: ?? (required) | |
| Documentation for this format | ||||