Reference pagesReason codes
Reason codes · Discover
Discover reason codes
Every Discover dispute reason code, what it means, and what the network says wins it. 19 current, and 7 the network has retired.
Fraud
Consumer dispute
| Code | Name | Filed as |
|---|---|---|
| AA | Does Not Recognize | General |
| AP | Canceled Recurring Payment | Subscription canceled |
| AW | Altered Amount | General |
| CD | Credit/Debit Posted Incorrectly | General |
| DP | Duplicate Processing | Duplicate |
| PM | Paid by Other Means | Duplicate |
| RG | Non-Receipt of Goods, Services, or Cash | Product not received |
| RM | Cardholder Disputes Quality of Goods or Services | General |
| RN2 | Credit Not Processed | Credit not processed |
| NF | Non-Receipt of Cash from ATM | Product not received |
Authorization
| Code | Name | Filed as |
|---|---|---|
| AT | Authorization Non-compliance | General |
Processing error
Consumer dispute
| Code | Name | Filed as |
|---|---|---|
| 05 | Good Faith Investigation | General |
Compliance
| Code | Name | Filed as |
|---|---|---|
| DC | Dispute Compliance | General |
How long you have
Cardholder dispute window: 120 days, or 540 days for non-receipt and quality, or 730 days for good faith
JPMorgan Chase, User Guide: Chargeback Reason Codes, October 2024
These are the network limits. Your acquirer often sets a shorter one, and theirs is the deadline that applies to you.
Retired codes
Discover no longer files disputes under these. They are here because a dispute raised before the change still carries its original code, and because some processors still map them.
| Code | Name | Filed as |
|---|---|---|
| UA10 | Request Transaction Receipt | Not in the processor map |
| UA11 | Fraud - Swiped, No Signature | Not in the processor map |
| NA | No Authorization | Not in the processor map |
| DA | Declined Authorization | Not in the processor map |
| EX | Expired Card | Not in the processor map |
| NC | Not Classified | Not in the processor map |
| IC | Illegible Sales Data | Not in the processor map |
Related
- Visa reason codes
- Mastercard reason codes
- American Express reason codes
- Evidence by reason
- Dispute statuses
Accessed 8 September 2026.
Do The Proof drafts dispute responses for Shopify stores.
You pay when a dispute is won. Not before.