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. 2014 Mar 26;5(1):284–298. doi: 10.4338/ACI-2013-11-RA-0096

Table 1.

Description of system alerts for the immunization migration process

Error Description
Patient validation No patient in the future EMR with a matching MRN AND matching date of birth
Crosswalk validation No match for a legacy system immunization identifier in the future EMR
Date validation
(2 types)
• Recorded before birth The immunization administration date in the legacy system is before the patient’s birth date in the future system
• Recorded in future The immunization administration date in the legacy system is after the date of the data transfer
Duplicate record An immunization record already exists within the future EMR for the same administration date AND type of immunization as a legacy system immunization.