1. C80 Malignant neoplasm without specification of site


    • malignant carcinoid tumor of unspecified site (C7A.00)
    • malignant neoplasm of specified multiple sites- code to each site
    1. C80.0 Disseminated malignant neoplasm, unspecified

      Inclusion term(s):

      • Carcinomatosis NOS
      • Generalized cancer, unspecified site (primary) (secondary)
      • Generalized malignancy, unspecified site (primary) (secondary)
    2. C80.1 Malignant (primary) neoplasm, unspecified

      Inclusion term(s):

      • Cancer NOS
      • Cancer unspecified site (primary)
      • Carcinoma unspecified site (primary)
      • Malignancy unspecified site (primary)
    3. C80.2 Malignant neoplasm associated with transplanted organ

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.