{
    "id": "MSH.9",
    "type": "Field",
    "position": "MSH.9",
    "name": "Message Type",
    "length": 15,
    "usage": "R",
    "rpt": "1",
    "dataType": "MSG",
    "dataTypeName": "Message Type",
    "tableId": null,
    "tableName": null,
    "description": "This field contains the message type, trigger event, and the message structure ID for the message.",
    "sample": "",
    "fields": [
        {
            "id": "MSH.9.1",
            "type": "Component",
            "position": "MSH.9.1",
            "length": 3,
            "dataType": "ID",
            "dataTypeName": "Coded values for HL7 tables",
            "usage": "R",
            "rpt": "1",
            "tableId": "0076",
            "tableName": "Message type",
            "name": "Message Code",
            "description": "Specifies the message type code. Refer to HL7 Table - Message Type in section 2.17.1 for valid values."
        },
        {
            "id": "MSH.9.2",
            "type": "Component",
            "position": "MSH.9.2",
            "length": 3,
            "dataType": "ID",
            "dataTypeName": "Coded values for HL7 tables",
            "usage": "R",
            "rpt": "1",
            "tableId": "0003",
            "tableName": "Event type",
            "name": "Trigger Event",
            "description": "Specifies the trigger event code. Refer to HL7 Table - Event Type in section 2.17.2 for valid values."
        },
        {
            "id": "MSH.9.3",
            "type": "Component",
            "position": "MSH.9.3",
            "length": 7,
            "dataType": "ID",
            "dataTypeName": "Coded values for HL7 tables",
            "usage": "R",
            "rpt": "1",
            "tableId": "0354",
            "tableName": "Message structure",
            "name": "Message Structure",
            "description": "Specifies the abstract message structure code. Refer to HL7 Table 0354 - Message Structure in section 2.17.3 for valid values."
        }
    ]
}