{
    "id": "BTX.1",
    "type": "Field",
    "position": "BTX.1",
    "name": "Set ID - BTX",
    "length": 4,
    "usage": "R",
    "rpt": "1",
    "dataType": "SI",
    "dataTypeName": "Sequence ID",
    "tableId": null,
    "tableName": null,
    "description": "This field contains the sequence number for the BTX segment under the related BPO segment. For the first product transfusion/disposition transmitted, the sequence number shall be 1; for the second product transfusion/disposition, it shall be 2; and so on.",
    "sample": "",
    "fields": []
}