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Does the Outside Lab field require the Clinical Laboratory Improvement Amendment (CLIA) number or the NPI on the CMS-1500 claim form?

April 26, 2017Amendment CLIA clinical field improvement lab laboratory outside require

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Does the Outside Lab field require the Clinical Laboratory Improvement Amendment (CLIA) number or the NPI on the CMS-1500 claim form?

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The Outside Lab field (Box 20) does not require the CLIA number or the NPI. If a claim includes charges for laboratory work performed by a licensed laboratory, enter an “X” in this box. “Outside” laboratory refers to a laboratory not affiliated with the billing provider. State in the Reserved for Local Use field (Box 19) that a specimen was sent to an unaffiliated laboratory. Leave blank if not applicable.