• 1.  2025 ICD-O Update

    Posted 03-05-2024 02:56 PM

    New 5th Ed Classification of Tumours books were not released by the World Health Organization in 2023 for review by the NAACCR ICD-O Implementation Task Force. As a result, there will not be an update for 2025. Continue using the current histology coding references found in the Solid Tumor Rules, ICD-O-3.2, ICD-O-3.2 Annotated list, and previous ICD-O guidelines.



    Lois Dickie, BA, BS, ODS-C

    Public Health Analyst


    Senior Editor, Solid Tumor Rules

    Senior Editor, SEER*RX

    Chair, NAACCR ICD-O Implementation Work Group

    CTR SME, Cancer PathCHART Project