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Thread: Anesthesia with Modifier 50

  1. #1

    Default Anesthesia with Modifier 50

    AAPC: Back to School
    Can anesthesia codes be billed with modifier 50? For example, can 00120 be billed with a 50 for a bilateral procedure?


  2. #2
    Join Date
    Apr 2007


    No anesthesia is based on time. You also have base units assigned to each anesthesia code. If you do multiple procedures you choose the code with highest base units.


  3. #3


    Thanks Charla,
    That is how I understood it, then I came across this, what does it mean?

    00120 Anesthesia for procedures on external, middle, and inner ear including biopsy;
    not otherwise specified

    00124 otoscopy

    00126 tympanotomy
    Pub. 100-4, Chapter 12, Sections 50, 140, 140.2,
    Coding Tip
    Codes 00120–00126 each identify a unilateral
    service. If the surgeon performs bilateral surgical
    services, use modifier 50 (bilateral procedure).


  4. #4
    Join Date
    Apr 2007
    Jamaica, NY

    Red face

    The surgeon would bill with the 50 modifier, not the anesthesiologist. The only time an anesthesiologist would use a 50 modifier is if he/she is performing the actual procedure, for example: bilateral saccroiliac joint injections...27096-50.

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