Modifier with 81003 and go477

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2
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Mount Pleasant, TN
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If we are doing a Drug Screen and a Urine dip with a possible UTI or other Urine issues, Is there a modifier that can be used showing they are totally separate. We have used 59 and 91 and both were denied. thank you for any help...
 
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59 would be the correct modifier (91 means the exact same test was performed), but some payers interpret the definition of the G codes to mean NO interpretive tests are allowed, ever. It may work to submit an appeal explaining in detail the patient's symptoms etc that made the separate UTI necessary.
 
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