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[bioontology-support] Versioning of SNOMED CT, NCIT and ACT Resources

John Graybeal jgraybeal at
Thu Aug 25 18:20:55 PDT 2022

The workflow of updates is that each collection of terms is updated by its maintainer on their own schedule, and then made available to the UMLS group  in due course by the maintainer. The UMLS group then chooses how quickly they want to update their product to reflect the provided ontology (e.g., sometimes one annually, sometimes twice annually). We don't have visibility into those details, except for the information that is provided on the corresponding metadata pages, and as Jennifer indicated, the embedded version information.


On Aug 25, 2022, at 9:46 AM, Lamine Traore <Lamine.Traore at<mailto:Lamine.Traore at>> wrote:


Can you please confirm / provide us the current versions of SNOMED CT, NCIT and ACT that Bioportal currently uses are as below?

1.       SNOMED CT (2022AA ?)
2.       National Cancer Institute Thesaurus (22.07d ?)
3.       Anatomical Therapeutic Chemical Classification (2022AA ?)

Is there a delay between Bioportal releases and resource publishers (SNOMED, NCI, WHOCC) updates?

Many thanks,

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Lamine Traore, PhD
IT Laboratory Project & Change Manager

IBBL (Integrated BioBank of Luxembourg)
For Next Generation Healthcare

1, rue Louis Rech, L-3555 Dudelange, Luxembourg
T: +352 26970-535
E: Lamine.Traore at<mailto:Lamine.Traore at>

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John Graybeal
Technical Program Manager
Center for Expanded Data Annotation and Retrieval /+/ NCBO BioPortal
Stanford Center for Biomedical Informatics Research
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