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National Program of Cancer Registries - page 73 / 93

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Colon Cancer: CS Mets at Dx

  • Codes 08, 10 are distant nodes

    • 08, 10 separated due to summary stage mapping

  • Code 40 is distant mets

    • Via bloodstream (hematogenous)

    • Discontinuous

    • Examples: liver, lung, brain

  • Code 50 is a combination of any distant lymph

nodes and any distant metastases

Information on distant metastasis at the time of diagnosis is coded in CS mets at dx. Code 08 and 10 for the colon record involvement of distant lymph nodes. There are two codes because some of the lymph nodes map to regional stage for summary stage 77. Distant metastasis, excluding lymph nodes, is assigned code 40. Code 50 is used when there is both distant lymph node involvement and discontinuous distant metastasis.

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