Biliary pain and functional biliary disorders (Rome IV)
Rome IV defines biliary pain first; the functional gallbladder and biliary sphincter disorders both require it. Rome IV criteria are summarised here in our own words; see the Rome Foundation for the full wording.
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Reference
Cotton PB, Elta GH, Carter CR, et al. Rome IV. Gallbladder and sphincter of Oddi disorders. Gastroenterology. 2016;150(6):1420-1429.
