| Tag | Field Name | Abbr Name | Data Type | Union Datatype | Description | Pedigree |
|---|---|---|---|---|---|---|
| 1541 | InstrumentScopeSecurityAltID | AltID | String | Used to limit instrument scope to specified security alternate identifier. Data domain controlled by field InstrumentScopeSecurityAltIDSource(1542) | Added EP105 |
|