# OpenHospitalCost > A free, public-interest index of real U.S. hospital prices — gross, cash, and > negotiated rates — extracted from the machine-readable files hospitals are > required to publish under 45 CFR §180, and cited to the source file and date. ## What makes this data different Every price is an actual figure reported by the hospital, not a modeled estimate or range. Prices are shown as the median facility rate per (hospital, procedure), with the full payer range, isolating facility charges from professional/component line items. Each hospital page links to the underlying machine-readable file. ## URL patterns - /procedure/{slug} — one procedure (CPT), compared across hospitals (the money page) - /hospital/{ccn} — one hospital's prices by procedure, with MRF provenance - /state/{code} — hospitals with published prices in a U.S. state - /sitemap.xml — all indexed pages ## Coverage Launching with the largest U.S. metros and expanding outward. Coverage and the "as of" date are shown on each page. ## Citation Cite individual pages by URL. Figures are informational, not a quote or guarantee of cost.