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Thread: Interstim

  1. #1
    Join Date
    Apr 2007
    Richmond, Virginia

    Default Interstim

    AAPC: Back to School
    Please help. I am new to interstim billing and need help verifying the codes i have found

    for the interstim trial done in our office to see how the patient responds i have come up with the codes:
    64561-mod 59
    a4290 x2

    now for the permanent electrodes my doc does stage 1 and 2 together in the hospital on an outpatient basis so i came up with
    64581 do i need modifiers for each side?
    l8680 x2 ----not sure if i charge this or not

    any help is appreciated, the company that introduced this to my doc gave me a billing sheet, but they have given me 3 different responses on how to bill each stage so i dont trust them at all.

    Thanks in advance!!!

  2. #2


    Yes this is correct

  3. #3
    Join Date
    Apr 2007
    Kansas City, MO


    The modifiers you need to use for 64561 and 64581 when both sides are done is either 59 on the second, or RT and LT. 50 is not a valid modifier. I've been using RT and LT for Medicare and they seem to be paying

    Karen Cross, CPC, CPMA, CEMC, CUC

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