1. C48 Malignant neoplasm of retroperitoneum and peritoneum

    Excludes1

    • Kaposi's sarcoma of connective tissue (C46.1)
    • mesothelioma (C45.-)
    1. C48.0 Malignant neoplasm of retroperitoneum

    2. C48.1 Malignant neoplasm of specified parts of peritoneum

      Inclusion term(s):

      • Malignant neoplasm of cul-de-sac
      • Malignant neoplasm of mesentery
      • Malignant neoplasm of mesocolon
      • Malignant neoplasm of omentum
      • Malignant neoplasm of parietal peritoneum
      • Malignant neoplasm of pelvic peritoneum
    3. C48.2 Malignant neoplasm of peritoneum, unspecified

    4. C48.8 Malignant neoplasm of overlapping sites of retroperitoneum and peritoneum

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.