> For the complete documentation index, see [llms.txt](https://docs.payengine.co/payengine-api-v2.5/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payengine.co/payengine-api-v2.5/error-and-response-codes/cvv-cardholder-verification-codes.md).

# CVV (CardHolder) verification codes

<table><thead><tr><th width="150">Code</th><th>Response Description</th></tr></thead><tbody><tr><td>M</td><td>CVV2 verification successful</td></tr><tr><td>P</td><td>CVV2 verification not performed</td></tr><tr><td>U</td><td>CVV2 verification not available</td></tr><tr><td>N</td><td>CVV2 verification fail/mismatch</td></tr><tr><td>S</td><td>CVV2 code not present on card</td></tr></tbody></table>