| Tag | Field Name | Abbr Name | Data Type | Union Datatype | Description | Pedigree |
|---|---|---|---|---|---|---|
| 1335 | UnderlyingLegSecurityAltID | AltID | String | Refer to definition for SecurityAltID(455) Data domain controlled by field UnderlyingLegSecurityAltIDSource(1336) | Added EP55 Deprecated EP187 |
|