ICD-10 Tumor Site Map

We overhauled our tumor site map to align with the active FY 2020 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

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