1. R97 Abnormal tumor markers

    Inclusion term(s):

    • Elevated tumor associated antigens [TAA]
    • Elevated tumor specific antigens [TSA]
    1. R97.0 Elevated carcinoembryonic antigen [CEA]

    2. R97.1 Elevated cancer antigen 125 [CA 125]

    3. R97.2 Elevated prostate specific antigen [PSA]

      1. R97.20 Elevated prostate specific antigen [PSA]

      2. R97.21 Rising PSA following treatment for malignant neoplasm of prostate

    4. R97.8 Other abnormal tumor markers

Abbreviations used here:

NEC Not elsewhere classifiable
This abbreviation in the Tabular List represents “other specified”. When a specific code is not available for a condition, the Tabular List includes an NEC entry under a code to identify the code as the “other specified” code.

NOS Not otherwise specified
This abbreviation is the equivalent of unspecified.