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Laboratory

  1. Default Laboratory
    Medical Coding Books
    Question: Can you bill a CT (Chlamydia) or GC (Gonorrhea) with multiple units due to the collection being obtained from different sites, ie...vaginal, anal and throat?

    Example: 87491 X 3 units- Can we bill this CPT code with multiple units or does it have to be billed separately.

    Should we use a modifier 91?

  2. Default
    I would add a 59 modifier x2 because the samples are from 3 different sites.

  3. #3
    Default
    Quote Originally Posted by mbenne69 View Post
    Question: Can you bill a CT (Chlamydia) or GC (Gonorrhea) with multiple units due to the collection being obtained from different sites, ie...vaginal, anal and throat?

    Example: 87491 X 3 units- Can we bill this CPT code with multiple units or does it have to be billed separately.

    Should we use a modifier 91?
    Separate line items with individual units, and add a 59 modifier to the extras. 91 would be if you collected from the same site twice in one day - like if you had tried a treatment, and wanted to see if it made a difference, for example. Be prepared to send records - the claim will probably be held for review.

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