merchantCategoryCode The ISO 18245 category code for the transaction. Declarationlet merchantCategoryCode: MerchantCategoryCode? See AlsoInstance PropertiesaccountIDcreditDebitIndicatorforeignCurrencyAmountforeignCurrencyExchangeRateidmerchantNameoriginalTransactionDescriptionpostedDatestatustransactionAmounttransactionDatetransactionDescriptiontransactionType