Ontario Genetic Test Directory

This directory lists diagnostic genetic tests available in Ontario for rare and inherited diseases, including molecular genetic, constitutional cytogenetic and pharmacogenetic tests.

This directory does not include:

Please contact your local genetics laboratory to confirm availability of testing, patient eligibility or sample requirements.

See genetics guidance for evidence-based clinical guidance on genetic testing in Ontario, and the Ontario Genetics Clinic Directory for a list of genetics clinics in Ontario.

The information in this directory is intended for informational purposes only and may not reflect all recent updates.

Note: OntarioHealth.ca has transitioned to a redesigned site. We are aware that the search function for the Ontario Genetic Test Directory is no longer available. It is expected to return in a future phase of the redesign. We apologize for the inconvenience. In the meantime, please use the filters to assist in your search.

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Showing 10 of 644 results

DPYD

Category:
Pharmacogenetics
Sub Category:
Dihydropyrimidine dehydrogenase deficiency (DPYD)
Lab:
Test type:
Targeted Variant

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Last Updated: February 13, 2026