When submitting an electronic claim for testing, is it the performing lab’s CLIA number included or the referral lab?


An electronic claim for laboratory testing will require the presence of the performing (and billing) laboratory’s CLIA number. If tests are referred to another laboratory, the CLIA number of the laboratory where the testing is rendered must also be on the claim.  An electronic claim for laboratory testing must be submitted using several rules established by the Centers for Medicare & Medicaid Services and available in section, chapter 16 of the Medicare Claims Processing Manual at


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