What do the symbol and abbreviation in the following phrase mean? In the phrase “∆ BUN,” the symbol means
and the acronym means.

17. susie jones is in the office today to see her regular physician for her 5 year well child check. she is getting ready to start school in a month and needs to have her immunizations updated. what modifier will be used with the preventative service code? explain why the modifier is required for reimbursed of both the well child check and the immunizations