42 codes that cover most of what an originator sees. Each one carries the decision: retry or stop, how long the receiving institution has to send it, what the guidance rests on, and when it was last checked.
What the tier labels mean, and how far this page has been checked
Draft
An agent wrote it from published material and nobody has checked it. Use it as a lead to confirm, never on its own as the basis for a retry, a return, a deadline or a compliance decision.
Corroborated
A validator found the same answer in one or more named public sources; the class in brackets says how strong they are. "Secondary sources only" means bank, processor or industry guides and nothing from the operator or regulator. Corroborated does not mean checked against the governing rulebook, so confirm before you act.
Verified
A person checked it against Visa (Visa Core Rules and Visa Product and Service Rules)'s own current text and recorded the edition and date. The strongest tier here, and still reference material, not legal or compliance advice.
On a rail fact, every detail line names the section or instrument it rests on and whether that is a rule, a law, operator guidance, or observed practice.
Nothing matches. Try a code number, or a phrase like "revoked", "savings", or "company name".
Known gaps in this build
Not yet covered: Visa's decline table gives each code a short label, a category and a reattempt limit, and no definition; the triggers in these records are mostly Orca's reading; the message field that carries the code and the full list of response values sit in VisaNet manuals, which are Visa Supplemental Requirements and were not consulted; the public rules do not say what the 20-attempt reattempt count is measured against; codes that Visa groups only as generic, and approval or non-decline response values, have no record of their own; decline codes on other card networks have not been compared with these.