CRGC News Broadcast
August 7, 2019
ICD-O-3 and 3.1 Available On-line

Both ICD-O-3 and 3.1 are now available on the IARC/WHO "Institutional Repository for Information Sharing" site. SEER strongly suggests registrars save BOTH editions to their desktops/computers.


Third edition Edited by A. Fritz, C. Percy, A. Jack, K. Shanmugaratnam, L. Sobin,D.M. Parkin  and S. Whelan

Please consult the previous versions online and the new links for ICD-O (2nd revision) as follows:

Click here for the IARC link. 

Note:  The ICD-O-3 and 3.1 are the exact versions of the printed books which are no longer available in print. Neither have been updated, therefore, the NAACCR ICD-O-3 Implementation Guidelines still need to be used along with ICD-O-3 and 3.1 versions. 
Click here for the link to NAACCR ICD-O-3 Implementation Guidelines.

DO NOT use the spreadsheets on the IARC web site and ignore the information provided in the ICD-O-3.2 Tables section.

Please submit any comments or questions to: Ask A SEER Registrar at the following link: 
If you have questions or concerns regarding any of the content of this CRGC News Broadcast please contact me .   

Mignon Dryden, CTR
Director, E-Reporting
Cancer Registry of Greater California