Obtaining XI

Xpansion Interpreter (AGG interruption testing) is provided as a service to specific carrier screening laboratories throughout the United States. If you would like information on how to obtain XI, please reach out to the following laboratories:



Sema4: 212.241.8717

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Natera: 1.650.249.9090

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NxGen MDx: 1.855.776.9436

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Progenity: 1.855.293.2639

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Recombine: 1.855.687.4363


Counsyl: 1.888.268.6795