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metastatic carcinoma

  1. #1
    Default metastatic carcinoma
    Medical Coding Books
    Anyone know if I can use 199.1 malignant neoplasm, unspecified site to code for "metastatic carcinoma, unknown primary"? Please help. Thanks.

  2. #2
    Columbia, MO
    Yes it is the one code that can go both ways, unknown primary or unknown secondary

    Debra A. Mitchell, MSPH, CPC-H

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