G0483 denying for not supported

Has anyone received denials for Humana and United Healthcare stating G0483 is not supported. We test from 20 to 25 Drug Classes and once they review the records they deny the code as non supported. We follow AMA and Medicare guidelines, per the CPT book we have the correct amount of Drug Classes but based of Humana we only perform up to 15. If anyone could give us any feedback will be greatly appreciated. Thank you


  • Hello,

    I've noticed some payers are shifting to non-coverage of that code, at least for medical practices. Others may challenge the medical necessity of definitive tests for that many drug classes in office.
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