Variance (VAR) segment — HL7v2 v2.5.1.
Defines variances from a clinical pathway or protocol.
6 fields per HL7 v2.5.1 specification.
@type t() :: %HL7v2.Segment.VAR{ documented_date_time: term(), extra_fields: term(), stated_variance_date_time: term(), variance_classification: term(), variance_description: term(), variance_instance_id: term(), variance_originator: term() }