Mercy Care is denying payment for consults/follow-ups submitted with same day echo although we use 25 modifier on E&M code. We were told that we need to use modifier 59 on the echo because they are using McKesson Claim check. There is no other test done that day so 59 does not meet it's criteria here. I don't feel comfortible as a coder using 59 modifier only because Mercy Care has a glitch in their system. Had anybody else have the same problem?