Mastercard Dispute Response Codes (Mastercard, 2022)

Mastercard guide can be found here.

Mastercard Chargebacks Made Simple guide can be found here

Code	Description	Category
4837	No Cardholder Authorization	Fraud
4840	Fraudulent Processing of Transactions	Fraud
4849	Questionable Merchant Activity	Fraud
4863	Cardholder Does Not Recognize—Potential Fraud	Fraud
4870	Chip Liability Shift	Fraud
4871	Chip/PIN Liability Shift	Fraud
4807	Warning Bulletin File	Authorization
4808	Authorization-Related Chargeback	Authorization
4812	Account Number Not On File	Authorization
4834	Point-of-Interaction Error	Point-of-Interaction Error
4831	Transaction Amount Differs	Point-of-Interaction Error
4842	Late Presentment	Point-of-Interaction Error
4846	Correct Transaction Currency Code Not Provided	Point-of-Interaction Error
4850	Installment Billing Dispute	Point-of-Interaction Error
4999	Domestic Chargeback Dispute (Europe Region Only)	Point-of-Interaction Error
4853	Cardholder Dispute	Cardholder Disputes
4841	Canceled Recurring or Digital Goods Transactions	Cardholder Disputes
4855	Goods or Services Not Provided	Cardholder Disputes
4860	Credit Not Processed	Cardholder Disputes