Solid Tumor Rules: 2023 Other Sites Available
The 2023 Other Sites Rules have undergone comprehensive revisions and have been posted on the SEER Website. The 2023 consolidated pdf is now available for download for use beginning with cases diagnosed 1/1/2023 forward.
IMPORTANT INFORMATION: The Solid Tumor Rules Editors strongly recommend reading through the entire Solid Tumor Other Sites module prior to using. The other sites rules now align with the other solid tumor site modules, however, there are some differences:
• New site based M and H rules have been added to address changes in clinical practice
• Histology tables for the majority of site groups covered by Other Sites Solid Tumor Rules have been
added as histology coding reference tools. It is important to read the information provided in each
table to use the tables correctly as some additional histology coding instructions are included in
select tables
The updated Solid Tumor Rules may be accessed at: https://seer.cancer.gov/tools/solidtumor/
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