"on the mode of communication of cholera" was a scientific text written by dr. john snow in 1855 about the disease cholera. identify the two primary purposes of this text.

a. to persuade officials and citizens to be more conscious about sanitation

b. to inform readers about new ideas about the disease using scientific evidence as support

c. to narrate the consequences of contracting the disease

d. to describe the lack of sanitation at the time of the story

This patient undergoes a gallbladder sonogram due to epigastric pain. the report indicates that the visualized portions of the liver are normal. no free fluid noted within morisons pouch. the gallbladder is identified and is empty no evidence of wall thickening or surrounding fluid is seen there is no ductal dilation. the common hepatic duct and common bile duct measure 0.4 and 0.8 cm respectively. the common bile ductmeasurement is at the upper limits of normal what cpt code in icd-10 cm code was used