@type t() :: %HL7v2.Segment.RQD{
  date_needed: term(),
  deliver_to_id: term(),
  dept_cost_center: term(),
  extra_fields: term(),
  hospital_item_code: term(),
  item_code_external: term(),
  item_code_internal: term(),
  item_natural_account_code: term(),
  requisition_line_number: term(),
  requisition_quantity: term(),
  requisition_unit_of_measure: term()
}