The ontologymaps service provides equivalency mapping between ICD-O and other classification systems, notably NCIt and UBERON. It makes use of the sample-level mappings developed for the individual samples in the Progenetix collection.
UBERON and ICD-O 3
More documentation with focus on the API functionality can be found on the documentation pages.
The data of all mappings can be retrieved trough this API call: {JSON↗}