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surgery code with AA modifier

  1. Default surgery code with AA modifier
    Medical Coding Books
    I am payor and I just came across a bizarre case. I have an anesthesiologist bill for a surgery procedure code with modifier AA. Now my question is, can they do this? I am under the impression that if they are doing anesthesia services then they need to bill with the proper anesthesia code.

  2. #2
    We bill anesthesia and we've found that some payers want the surgical CPT code with the anesthesia modifiers and some want the anesthesia CPT code with the anesth. modifier- so- they may not have known which way your business wanted it?

  3. Default
    Does anyone know if there is a "standard" way of coding anesthesia? Anesthesia codes or surgical cpts with AA?

  4. #4
    Charleston, WV
    I don't think there is a standard. I've known of at least 4 different billing requirements by various payers. Some want the surgical code. Some want the anesthesia code. Some want both. Some want the anesthesia code only if the code has only 1 possible unit value but both if there are multiple possible values. If you're lucky enough to have billing software that will accomodate each payer's requirements you don't, as a coder, have to worry about it too much.

    In my mind, the "correct" way is to use the anesthesia code but that's my mind. It's not always in good working order.

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