I have submitted a claim a few times and it gets rejected each time for a different reason. I have now received the below message and do not know how to resolve the issue. Can someone please help??
Acknowledgement/Returned as unprocessable claim-The claim/encounter has been rejected and has not been entered into the adjudication system.
Missing or invalid information. R ACK/REJECT INVAL INFO - ENTITYS NATIONAL PROVIDER IDENTIFIER (NPI). USAGE THIS CODE REQUIRES USE OF AN ENTITY CODE. - BILLING PROVIDER (A3 - 21)
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