Are you aware of these special submission codes for MSP claims?

Special submission codes for MSP codes

Some MSP claims have to be submitted with the special submission codes D and E to be correctly processed.

If you need to bill for more than one identical procedures during one patient’s visit, use code D for all claims expect the first one. D means duplicated claims. If you forget to include code D, your claims will be rejected as technical duplicates. An example is multiple lacerations (fee item 13610). If you attend to a patient with multiple lacerations and need to bill 13610 for every laceration, add code D to every claim except the first one.
Use submission code ‘E’ if you want to make a debit request for an erroneously submitted and paid claim. A note record with reason must be included.