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Thread: DD Modifiers

  1. #1

    Default DD Modifiers

    AAPC: Back to School
    Hi all

    Does any one come across DD modifier.

    Pls share it if known
    Nandha CPC

  2. #2
    Join Date
    Apr 2007
    Charleston, WV


    DD is used with transportation codes to indicate the origina and destination of the patient. The origin and destination codes are:

    D = Diagnostic or therapeutic site other than P or H when these are used as origin codes;
    E = Residential, domiciliary, custodial facility (other than 1819 facility);
    G = Hospital based ESRD facility;
    H = Hospital;
    I = Site of transfer (e.g. airport or helicopter pad) between modes of ambulance transport;
    J = Freestanding ESRD facility;
    N = Skilled nursing facility;
    P = Physician’s office;
    R = Residence;
    S = Scene of accident or acute event;
    X = Intermediate stop at physician’s office on way to hospital (destination code only)

    So, DD indicates the patient was transported from a diagnostic or therapeutic site other than physician's office or hospital to another therapeutic site other than physician's office or hospital.

  3. #3


    Thanks for ur help
    Nandha CPC

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