We are a payer and we accept claims electronically from Medicare where they
have paid as primary.

If we receive an 837 COB transaction from a Medicare Carrier/Intermediary
and it contains information in the MIA or MOA segments, do we need to retain
this information and use it to populate the MIA/MOA segments on the 835
transaction that we create as the secondary payer?  Or do we simply not use
these segments if we don't use this information when we adjudicate the claim
as secondary?

Does this also hold true for the 2100 loop QTY Segment that may contain
Covered Days, Non-Covered Days, Lifetime Reserve, etc?

Jim Griffin
Business Systems Analyst
CNA



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