A presumption is a belief or hypothesis about something. An assumption is taking a piece of information (as in knowledge about a topic) as a given fact. When you put them together, a presumptive assumption is troublesome because you can assume in error.
Our coding experts answer your questions about correct use of modifier –PD, coding infusions to correct low potassium levels, payment for HCPCS code J2354, appropriate reporting of IV push followed by infusion of the same drug, and the difference between modifiers –AS and -80.
