| Tag | Field Name | Abbr Name | Data Type | Union Datatype | Description | Pedigree |
|---|---|---|---|---|---|---|
| 1059 | UnderlyingInstrumentPartyID | ID | String | PartyID value within an underlying instrument party repeating group. Data domain controlled by field UnderlyingInstrumentPartyIDSource(1060) | Added EP8 Updated EP95 |
|