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Wiki Lab 87400 mod 91 or 59

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audmkn1

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Hi can anyone tell me if they do the influence lab test 87400 twice do they use the modifier 91 or 59 with second code - I've been told 59 - but thought 91 was for multiple lab tests.

Thanks for any input
Debi
 
-91 is the correct modifier. Here in Nebraksa we were getting denials because of a computer problem with one of the insurance carriers. Had to call and get it straight out.
 
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