@type t() :: %HL7v2.Segment.OM7{
  category_description: term(),
  category_identifier: term(),
  category_synonym: term(),
  consent_effective_end_date_time: term(),
  consent_effective_start_date_time: term(),
  consent_identifier: term(),
  consent_indicator: term(),
  consent_interval_quantity: term(),
  consent_interval_units: term(),
  consent_waiting_period_quantity: term(),
  consent_waiting_period_units: term(),
  effective_date_time_of_change: term(),
  effective_test_service_end_date_time: term(),
  effective_test_service_start_date_time: term(),
  entered_by: term(),
  extra_fields: term(),
  formulary_status: term(),
  orderable_at_location: term(),
  primary_key_value_cdm: term(),
  sequence_number: term(),
  special_order_indicator: term(),
  test_service_default_duration_quantity: term(),
  test_service_default_duration_units: term(),
  test_service_default_frequency: term(),
  universal_service_identifier: term()
}