curl --request POST \
  --url https://api.halth.com/v1/au/medicare/claims/{claimId}/cancel

{
  "id": "<string>",
  "locationId": "<string>",
  "createdAt": "2023-11-07T05:31:56Z",
  "totalChargeAmount": 123,
  "totalRebateAmount": 123,
  "totalGapAmount": 123,
  "itemsCount": 123,
  "mcolTransactionId": "<string>",
  "items": [
    {
      "id": "<string>",
      "itemCode": "<string>",
      "chargeAmount": 123,
      "rebateAmount": 123,
      "gapAmount": 123,
      "mcolAssessmentCode": "<string>",
      "mcolErrorCode": "<string>",
      "mcolErrorMessage": "<string>",
      "patientCount": 123,
      "quantity": 123
    }
  ],
  "reference": "<string>",
  "patientMedicareCardId": "<string>",
  "claimantMedicareCardId": "<string>",
  "mcolClaimId": "<string>",
  "mcolErrorCode": "<string>",
  "mcolErrorMessage": "<string>",
  "transactionId": "<string>",
  "referral": {
    "providerNumber": "<string>",
    "issuedAt": "<string>",
    "periodCode": "<string>",
    "typeCode": "<string>"
  }
}