Research

ICD-10 Tumor Site Map

    We overhauled our tumor site map to align with the active FY 2021 ICD-10 diagnosis code set. Now that we have several years of historical ICD-10 claims data to guide us, we’ve made some changes to the map's structure, and even to some of the relationships between specific codes and tumor sites or sub-tumor sites.

    To learn more about the new structure and methodology, we recommend reviewing the User Guide first.

    Download the user guide


    The new Tumor Site Map includes:

    1. More detailed tumor site categories (macro, tumor site, sub-tumor site, and micro)
    2. More ICD-10 codes (retired codes and codes for patients without active cancer who may be of interest to cancer programs)
    3. More detail about each ICD-10 code (e.g., malignancy status, flags for secondary cancers, and filters for male vs. female breast cancer codes)

    Download the ICD-10 Map

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