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Thread: Modifer AI

  1. #1

    Question Modifer AI

    AAPC: Back to School
    can anyone help me?

    Medicare Patient

    Patient was seen in the ED on 01/04/10. The ED billed for their service. Looking over the inpatient case data in our system it reads that the admitting doctor was a surgeon. So now on 01/04/10 the surgeon billed for their service (99221-3). On 01/05/10 the patient is seen by the Cardiologist (inpatient service) which then bills for their service visit (99221-3).

    My Question:
    -can ED physicians use modifier AI?
    -Is it the Cardiologist who should be responsible for appending modifier AI since they are hospital inpatient?
    -Or is it the surgeon who should append modifier AI because they admitted the patient?

    Thank you for all your help!
    Last edited by Elizabeth1; 02-06-2010 at 09:35 AM.

  2. #2


    AI would go to the admitting physician per my last seminar.

  3. #3
    Join Date
    Apr 2007

    Default ai

    The modifier would go to the surgeon

  4. #4
    Join Date
    Apr 2007
    Jacksonville Florida


    I agree, the "AI" should go to the admitting which would be the surgeon in this case.
    Jammie Barsamian, CPC, CCC, CEMC, CCS-P, CPMA

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