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Thread: Use modifier -59 with lab code

  1. #1

    Default Use modifier -59 with lab code

    AAPC: Back to School
    Can someone please tell me how and when I can use modifier -59 in lab coding? I am struggling with this.

    Thank you for your help.

  2. #2
    Join Date
    Apr 2007

    Default use of modifier 59 with lab tests.

    You would use modifier 59 when you have more than one DIFFERENT lab test but they use the same CPT code, or if you have the same lab test with different types of specimens, such as serum and the same test on a body fluid where there is not a different code available for each of them. You would place modifier 59 on the additional tests not on the first. I use to work as a Medical Technologist and also have done lab billing for many years. I hope this helps.

  3. #3

    Default Use of modifier -59 in lab coding

    Thank you so much. It does help, but if you have a specific example I will appreciate it

  4. #4

    Default Supporting Documentatiion

    HI, do you have a citation for the use of modifier 59 which you describe above>

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