Which procedures were followed in this lab to decrease experimental error? Check all that apply. using different volumes of solution during each step
using three different temperatures instead of only two
using different types of vinegars with different chemical formulas
using water as a baseline for comparison
using different types of limestone in each step

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