WHO Blue Book Terms
Important
These modules are archived and should only be referenced for historical purposes.
World Health Organization "Blue Books"
Histological Typing of Tumours, books on histologic typing
In a coordinated effort with the editors of the World Health Organization's books on histologic typing*, all terms in the WHO Blue Books will be included in ICD-O-3 and new editions of the Blue Books will include ICD-O-3 numbers in their type lists.
* International Histological Classification of Tumours, Second Edition. Geneva: World Health Organization. Twenty-two fascicles in this series have been published between 1991 and 2000.
Suggested Citation
SEER Training Modules: WHO Blue Book Terms. U.S. National Institutes of Health, National Cancer Institute. Cited 09 January 2026. Available from: https://training.seer.cancer.gov.