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posting add-on code without primary

  1. #1
    Default posting add-on code without primary
    Medical Coding Books
    Inpatient has procedure 22558, arthodesis done on 9/6. Then on 9/9 patient has add-on code 22840, non-segmental instrumentation done by same physician. How would you code the add-on code without the primary? Insurance denies it when add on only is charged for that day.

  2. #2
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    Long Island/New York
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    Quote Originally Posted by bjmon83 View Post
    Inpatient has procedure 22558, arthodesis done on 9/6. Then on 9/9 patient has add-on code 22840, non-segmental instrumentation done by same physician. How would you code the add-on code without the primary? Insurance denies it when add on only is charged for that day.
    you can't....maybe unlisted??

  3. #3
    Location
    Greater Pittsburgh
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    I agreee w nyyankess, you can't that's why they are called + add on.
    jdemar, CPC, CMA

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