| RelatedInstrumentTypeCodeSet | int | The type of instrument relationship
| 1 | = | hedges for instrument
| Added EP103
| | [HedgesForInstrument] | | 2 | = | Underlier | Added EP187
| | [Underlier] | | 3 | = | Equity equivalent | Added EP187
| | [EquityEquivalent] | | 4 | = | Nearest exchange traded contract | Added EP187
| | [NearestExchangeTradedContract] | | 5 | = | Retail equivalent of wholesale instrument | Added EP195
| | [RetailEquivalent] | | 6 | = | Leg Used to associate or link InstrumentLeg to Instrument in messages where there can be multiple instruments, such as in Email(35=C) and News(35=B) messages. | Added EP201
| | [Leg] |
| Added EP103
|