ICD-O-3

Online version of ICD-O from International Agency of Research on Cancer (IARC)

Link to SEER ICD-O-3. SEER provides validation lists for “coherent” topography/morphology or site/histology combinations

ICD-O-3 Validation List

Online downloadable CSV version of ICD-O-3 from WHO (does not contain 2011 ICD-O-3.1 updates)

Guidance documents from NAACCR on now to implement ICD-O-3.1

History of ICD-O

Mapping to ICD-10

Mapping of oncology diagnosis using NCI Metathesaurus

Memorial Sloan Kettering (MSK) Oncotree mapping

MSK & collaborator's tumor terminology (publicly available): http://oncotree.mskcc.org/oncotree/

Public API that maps ICDO site and histology combinations to Oncotree concepts, which at the same time are mapped to NCI Thesaurus and UMLS: http://oncotree.mskcc.org/oncotree-mappings/

An example of an API call: http://oncotree.mskcc.org/oncotree-mappings/crosswalk?vocabularyId=ICDO&conceptId=&histologyCode=8490/3&siteCode=C16.1