Reason Code 31300

Published 07/12/2021

Description

The Primary Payor Code is missing or incorrect.

The Payer ID is not equal to A, B, C, D, E, F, G, H, L, or Z or the Payer ID is equal to I, value code 42 is present, and the type of bill is not 11X, 18X, 21X, or 41X.

Resolution

Please refer to the CMS Medicare Secondary Payer Manual to verify the payer code billed; correct and resubmit.

Resource: Medicare Secondary Payer (MSP) Manual (PDF), IOM 100-5 chapter 3 - MSP Provider, Physician, and Other Supplier Billing Requirements.                           


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