@type t() :: %HL7v2.Segment.BTX{
  bc_blood_group: term(),
  bc_component: term(),
  bc_donation_id: term(),
  bp_administrator: term(),
  bp_adverse_reaction_type: term(),
  bp_amount: term(),
  bp_date_time_of_status: term(),
  bp_message_status: term(),
  bp_quantity: term(),
  bp_transfusion_disposition_status: term(),
  bp_transfusion_end_date_time_of_status: term(),
  bp_transfusion_interrupted_reason: term(),
  bp_transfusion_start_date_time_of_status: term(),
  bp_unique_id: term(),
  bp_units: term(),
  bp_verifier: term(),
  cp_commercial_product: term(),
  cp_lot_number: term(),
  cp_manufacturer: term(),
  extra_fields: term(),
  set_id: term()
}