Master File Identification (MFI) segment -- HL7v2 v2.5.1.
Contains identification information for a master file. 6 fields per HL7 v2.5.1 specification.
@type t() :: %HL7v2.Segment.MFI{ effective_date_time: term(), entered_date_time: term(), extra_fields: term(), file_level_event_code: term(), master_file_application_identifier: term(), master_file_identifier: term(), response_level_code: term() }