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Thread: Modifier 99 - When and where can we use modifier 99

  1. #1

    Default Modifier 99 - When and where can we use modifier 99

    AAPC: Back to School
    Hi Everyone,

    When and where can we use modifier 99???
    Can someone come up with an answer for this, if yes, it wud be really helpful.

    Dr. Poonam
    Last edited by ank3t; 10-04-2016 at 05:32 AM.

  2. #2
    Join Date
    Apr 2007


    I'm not sure you'd ever really use it. It was used to put on the code if you didn't have room for all the modifiers you needed, then you'd list the modifiers in the description field. Claims can accept 4 modifiers on each code so you don't need the 99.
    Pam Tienter, CPC, COC, CPC-P, CCS-P, CPMA, CPC-I
    AHIMA Approved ICD-10-CM/PCS Trainer
    AAPC National ICD-10-CM Trainer

  3. #3
    Join Date
    Apr 2007


    Angelica Stephens RHIT, CPMA, COSC, CCS-P, CPC, COC.
    Albuquerque, NM

  4. #4
    Join Date
    Apr 2007


    the only time you would use the 99 modifier is if you had more than 4 modifiers. At that point you would only use the 99 on the line and then list all of the modifiers in box 19 of the HCFA

  5. #5


    Thanks alot

    Dr. Poonam

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