Health insurers just published close to a trillion hospital prices

In the newly-released data, each "negotiated rate" (or simply "price") is associated with a lot of metadata, but it boils down to: who's paying, who's getting paid, what they're getting paid for, plus some extra fluff to keep track of versioning. The hundreds of billions of prices in the dataset (probably over a trillion) result from all the possible combinations of these things. Codes can have different types, or versions. Prices can have service codes. And so on.