Midigator has created a database of reason codes. Reason codes often change or are removed by the card brands. For the most accurate list of reason codes visit the library on our main website here.
Visa Reason Codes
Mastercard Reson Codes
4834 – Point-Of-Interaction Error – Cardholder Debited More than Once for the Same Goods or Services
4834 – Point-Of-Interaction Error – Point-of-Interaction (POI) Currency Conversion (Dynamic Currency Conversion)
4834 – Point-Of-Interaction Error – Merchant Credit Correcting Error Resulting in Cardholder Currency Exchange Loss
4846 – Correct Transaction Currency Code Not Provided/Currency Errors – Transactions Involving a European Issuer or Acquirer
4846 – Correct Transaction Currency Code Not Provided/Currency Errors – Transactions Not Involving a European Issuer or Acquirer
American Express Reason Codes
Discover Reason Codes