tci Part B Insider - 2004 Issue 2

Biggest Mistakes With Modifiers -51 and -59

Coders mistakenly apply both modifiers -51 (Multiple procedures) and -59 (Distinct procedural service) on multiple procedures, consultant Ken Lobo says. "One should use either modifier -51 or modifier -59, but never both together." Since modifier -51 lets the carrier know that multiple procedures can be paid at a discount, and modifier -59 asks for the full payment, the two modifiers are contradictory. Also, coders sometimes apply modifier -59 when it's already clear that the procedures involved were distinct and separate. You don't need any modifier if two procedures are obviously unrelated, Lobo says. For example, if you...

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