Laboratory

Laboratory Question for the Week of February 17, 2020

Laboratory Compliance Question of the Week

Question:

Is it true that I can code modifier 91 for a normal one-time test result?

Answer:

No, modifier 91 is intended to communicate that on the same date of service it was medically necessary to obtain multiple sequential results in the course of treatment. The modifier should not be used when a normal one-time result is medically indicated.


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