# Transitive closure file

A file containing the transitive closure of the SNOMED CT subtype hierarchy.

The transitive closure file is not currently distributed but can be generated from the snapshot relationship file using a script file. The script file is available for download at <http://snomed.org/transclose> or via GitHub as part of one of the database loaders ([mysql-loader-with-optimized-views](https://github.com/IHTSDO/snomed-database-loader/tree/master/mysql-loader-with-optimized-views)).

## Related Links

* [Transitive Closure Files](/snomed-ct-specifications/snomed-ct-release-file-specification/component-release-file-specification/4.2-file-format-specifications/4.2.5-transitive-closure-files.md) for further details.

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