| RelatedTradeIDSourceCodeSet | int | Describes the source of the identifier that RelatedTradeID(1856) represents.
| 0 | = | Non-FIX source | Added EP142
| | [NonFIXSource] | | 1 | = | Trade ID | Added EP142
Updated EP165
| | [TradeID] | | 2 | = | Secondary trade ID | Added EP142
Updated EP165
| | [SecondaryTradeID] | | 3 | = | Trade report ID | Added EP142
Updated EP165
| | [TradeReportID] | | 4 | = | Firm trade ID | Added EP142
Updated EP165
| | [FirmTradeID] | | 5 | = | Secondary firm Trade ID | Added EP142
Updated EP165
| | [SecondaryFirmTradeID] | | 6 | = | Regulatory trade ID | Added EP165
| | [RegulatoryTradeID] |
| Added EP142
|