I would like some help on the codes that are used to bill insurance for one on one ABA therapy for diagnosis code 299.00 or 299.90
Or where can I find teh resources to obtain this information? We billed under codeS9445 but it was denied and we were told that we could use code 90812 but we are not sure and we want to make sure that when we resubmit the bill it has teh correct coding.
Thank you,