Where the definition comes from is more interesting than the definition. The Consumer Financial Protection Bureau's December 2012 study Key Dimensions and Processes in the U.S. Credit Reporting System uses the term and defines it in the body of the report: "Derogatory is defined as negative information that will likely hurt a consumer's credit (e.g., late payments, collection accounts, foreclosures, civil judgments)." That is a serviceable definition and it is the one this page adopts. But the Bureau's footnote for it, number 41, cites "Credit Advice from The 'Ask Experian' Team" — a credit bureau's own consumer blog. So the closest thing to an official definition of the word is a federal agency quoting an industry blog, which is a fair description of how much of this vocabulary is set.
The one fact that generalizes across every variety: paying it does not remove it. A derogatory entry records something that happened. Satisfying the underlying obligation later is a new fact about the account, not a correction of the old one, so what changes is the reported status while the entry itself stays. The retention period is measured from the events that produced the entry rather than from the payment, and the mechanics of that measurement, including the rule that fixes the start date for a collection or charged-off account, belong to the credit report page. The practical consequence is that "pay it off and it comes off" is wrong in both halves.
What the statute does and does not say about removal. The sentence Congress requires in the summary of rights is a negative about a duty: an agency is not required to remove accurate derogatory information. It does not say the information may never be removed, and it is not addressed to the furnisher at all. Two of the routes people actually take run to the furnisher rather than the bureau, and both have their own pages: asking a collector to delete an accurate entry as part of a payment, and asking an original creditor to remove an accurate late mark as a courtesy. The route for an entry that is inaccurate is different again, is a statutory right rather than a request, and belongs to the credit dispute page.
The severity question has no published answer, and that is worth saying plainly rather than filling in. Consumer writing routinely ranks derogatory marks from least to most damaging. Fair Isaac publishes no such ranking, and the weights it does publish describe categories rather than individual entry types. What can be said from the sources is narrower and more useful: the payment-history category is the largest single input to a FICO Score at 35 percent in Fair Isaac's published breakdown, and most of the entries in this class are read there. Any specific point figure attached to a particular kind of mark is somebody's estimate.
The class, and where each member is covered. A late payment is a required payment that reached the creditor after its due date. Delinquency is the state of being behind, measured as a period rather than an event. A charge-off is the creditor's own accounting reclassification of the debt as a loss. A collection account is the entry a third-party collector adds. Repossession and foreclosure are the enforcement of a lien on a car and on real property. Bankruptcy is the federal court process, and a tax lien is the government's claim securing an unpaid tax debt. Each has its own page, and each carries the detail this one deliberately does not.