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Thread: influenza A & B testing

  1. #1
    Join Date
    Apr 2007
    Kachina Coders

    Default influenza A & B testing

    AAPC: Back to School
    Our office will be doing the influenza testing for A and B w/ CPT code 87804-- my question is that if we do the test for both A and B strains how do we code this? We will be using CPT code 87804-- BCBS states to use modifier 91, others have stated to use Modifer 59. if your opinion which is the correct way to code this ? Thanks in advance for any help

  2. #2
    Join Date
    Apr 2007

    Default Flu Testing

    What test kit are you using?
    Heather Winters, CPC, CFPC

  3. #3
    Join Date
    Apr 2007
    North Carolina


    We perform this test and have had great success with modifier 59.


  4. #4


    use modifier -59 on the second one. It's the proper one to use and is paid by most carriers

  5. #5
    Join Date
    Apr 2007
    Gainesville, GA


    You have to specify the results for both test.

    Lisa D

  6. #6
    Join Date
    Apr 2007
    First Hill, Seattle WA

    Default We've used -91

    in the past without issue. However, it is up to what the individual carriers want.

  7. #7
    Join Date
    Apr 2007
    Greeley, Colorado

    Red face

    If influenza A is neg, but B is pos, what ICD-9 codes do you use?
    Lisa Bledsoe, CPC, CPMA

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