01538
Last Update Facility
2003-08-22
Definition: This field identifies the facility of the last update to a patient_s/person_s identifying and demographic data, as defined in the PID segment. Receiving systems or users will use this field to determine how to apply the transaction to their systems. If the receiving system (such as a hospital_s patient management system) already has a record for the patient/person, then it may decide to only update its data if the source is a _trusted_ source. A hospital might consider other hospitals trusted sources, but not _trust_ updates from non-acute care facilities. For example:
HL7 v2
...|Metro Hospital|...Length≤241
3 components
| 1 | O | Namespace ID | ||
| 2 | C | - | Universal ID | |
| 3 | C | Universal ID Type |