Merge Patient Information (MRG) segment — HL7v2 v2.5.1.
Carries the "prior" patient identifiers in merge operations (ADT^A39-A42). 7 fields per HL7 v2.5.1 specification.
@type t() :: %HL7v2.Segment.MRG{ extra_fields: term(), prior_alternate_patient_id: term(), prior_alternate_visit_id: term(), prior_patient_account_number: term(), prior_patient_id: term(), prior_patient_identifier_list: term(), prior_patient_name: term(), prior_visit_number: term() }