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Thread: Mod-50

  1. #1

    Question Mod-50

    AAPC: Back to School

    I know CPT 64623 is an add-on code for each level...this is a "Unilateral" code.. If the provider performs this procedure Left side one day 1, then brings pt back next day or 2 and bills it again for RT side.... Mod-50 applies??

    Or does mod-50 apply only if performed on the same day... Cpt reads if this is performed on both sides of the body, append mod-50 with the code.. It does not say if this is performed on both sides of the body on the same day or different day, then append mod 50...

    I understand it to read if is done on same day then append mod-50, if is performed on different days then do not append mod-50.... Help???
    Marilyn CPC, CPC-H, CEMC

  2. #2
    Join Date
    Apr 2007


    Modifier 50 would be used for services billed on the same day.
    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


    Marilyn CPC, CPC-H, CEMC

  4. #4
    Join Date
    Apr 2007
    Capital Coders, Columbia, SC


    For the second procedure, within the global period, I would report

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