ASC facility billing getting denial from insurance 45378 with mod-74 diagnosis Z21.11 and Z53.8. Does anyone see error, reason for denial?

shayden

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ACS facility billing 45378 with modifier 74 diagnosis Z21.11 andZ53.8. Does anyone see error or reason for denial?
 

thomas7331

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What is the payer and what reason are they giving for the denial? The only thing I can guess without additional information is that if the payer is Medicare or follows Medicare guidelines, then with this diagnosis the procedure should be G0121 instead of 45378.
 
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