Claim response - CPT code

Sample Claim response shared below. Please help on below queries

  1. Advise if revenue is correct element to represent CPT code in the claim response
  2. How to define multiple exams with their corresponding outcome response in the claim response
  3. How to define alternate exam suggested rather than sent exam (cpt) code from source in the claim response.

{
“resourceType”: “ClaimResponse”,
“requestIdentifier”: {
“system”: “http://<>.com/transaction-identifier”,
“value”: “test123”
},
“outcome”: {
“system”: “http://companyurl.com/outcome”,
“code”: “A”,
“display”: “Approved”
},
“addItem”: [{
“revenue”: {
“system”: “http://www.ama-assn.org/go/cpt”,
“code”: “72000”
}
}],
“note”: [
{
“type”: {
“system”: “http://hl7.org/fhir/ValueSet/note-type”,
“code”: “Criteria”
},
“text”: “Diagnostic Imaging”
}
]
}