I have had the same thing happening on our claims at Columbia/Boone County. I also have disputed the claims and the message I’m getting is: “This change better represents the services that were performed.” On my claim, I only submitted a 90707 and they still changed it.
As for the question regarding 90700 and 90707 payments, we bill all VFC vaccines at $20.00, so I’m getting the full $20.00 that I bill for those 2 vaccines. My thought is that since they raised the reimbursement rate to $8.07 per vaccine component, that is why you are getting paid at a higher rate now.