{
    "id": "FT1.31",
    "type": "Field",
    "position": "FT1.31",
    "name": "Transaction Reference Key",
    "length": 4,
    "usage": "O",
    "rpt": "*",
    "dataType": "SI",
    "dataTypeName": "Sequence ID",
    "tableId": null,
    "tableName": null,
    "description": "The reference key linking the payment to the corresponding charge in an e-claim. This field should contain the FT1-1 - Set ID FT1 that identifies the charge corresponding to the payment. This field is repeating to allow a payment to be posted against multiple charges.",
    "sample": "",
    "fields": []
}