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Wiki Reference Laboratory Testing

Thread starter stacycallean
Start date Jun 1, 2017

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stacycallean

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Jun 1, 2017

Medicare states that when performing laboratory test by both the billing laboratory and a reference laboratory, you are not to split the claim. You distinguish the test by using modifier 90 for the tests that were referenced out. My question is who's information goes in box 31 and 32 on the 1500 form? The billing laboratory or the the reference laboratory?

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