The example has the reasonDetail extension on a reasonCode array element by itself without an associated coding, and the coding on a different reasonCode array element without the extension.  The intent of the example is to have the extension expand upon the coding.  Revise the example to put the coding and the extension in the same reasonCode array element.

FSH:

Instance: guidanceresponse01
InstanceOf: DetailedCareGapGuidanceResponse
Usage: #example

• moduleUri = "http://someguidelineprovider.org/radiology-appropriateness-guidelines.html"
• status = #success
• subject = Reference(Patient/patient01)
• reasonCode[0] = http://hl7.org/fhir/us/davinci-deqm/CodeSystem/care-gap-reason#Present "Data Element is Present"
    * extension[reasonDetail]
      * extension[reference].valueReference = Reference(Patient/patient01)
      * extension[path].valueString = "example"