When a portion of a vial of injected medication must be discarded as waste, submit HCPCS modifier JW. To submit claims for discarded drugs, submit two complete claim lines.
Claim line #1:
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HCPCS code for drug given
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No modifier
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Number of units administered to the patient
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Calculated submitted price for only the amount of drug administered
Claim line #2:
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HCPCS code for 'discarded' drug
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HCPCS modifier JW to indicate waste
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Number of units discarded
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Calculated submitted price for only the amount of drug discarded