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Test Code See Note MTHFR Gene Mutation

Important Note

For requests for MTHFR gene testing, order a non-inferfaced miscellaneous test (LAB4300) and test code Quest 17911 Methylenetetrahydrofolate Reductase (MTHFR), DNA Mutation Analysis

CPT code for MTHFR is 81291 and MolDx Z code for this test at Quest is ZB0WQ.