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Billing C9600 in ASC Setting

Date: Oct 19, 2020

Question:

I am new to ASC coding. I am trying to bill C9600 with a POS 24 to Medicare. I am sending the claim via HCFA1500 to First Coast (my local MAC). But, I am getting a denial code CAS-109, stating that the claim needs to be sent to the right contractor. I am at a loss, because I did not think these codes needed to be sent to the DME contractor? I cannot find C-codes listed on CGS's Fee Schedule. Any suggestions?

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