{
    "id": "INV.13",
    "type": "Field",
    "position": "INV.13",
    "name": "First Used Date/Time",
    "length": 26,
    "usage": "O",
    "rpt": "1",
    "dataType": "TS",
    "dataTypeName": "Time Stamp",
    "tableId": null,
    "tableName": null,
    "description": "This field is the time and date when the substance was first used. This date and time can be necessary to determine the stability of the substance. The meaning of the \"first used\" element depends on the substance. In certain cases it means the time when the substance was put on board of the instrument or prepared (mixed), without actually using it in the analysis.",
    "sample": "",
    "fields": [
        {
            "id": "INV.13.1",
            "type": "Component",
            "position": "INV.13.1",
            "length": 24,
            "dataType": "DTM",
            "dataTypeName": "Date/Time",
            "usage": "R",
            "rpt": "1",
            "tableId": null,
            "tableName": null,
            "name": "Time",
            "description": "The point in time."
        },
        {
            "id": "INV.13.2",
            "type": "Component",
            "position": "INV.13.2",
            "length": 1,
            "dataType": "ID",
            "dataTypeName": "Coded values for HL7 tables",
            "usage": "B",
            "rpt": "1",
            "tableId": "0529",
            "tableName": "Precision",
            "name": "Degree Of Precision",
            "description": "Retained only for purposes of backward compatibility as of v 2.3. Refer to component 1 for current method of designating degree of precision. \r\n\r\nIndicates the degree of precision of the time stamp (Y = year, L = month, D = day, H = hour, M = minute, S = second). Refer to HL7 Table 0529 - Precision for valid value."
        }
    ]
}