“CB” Modifier For Dialysis Services

CMS has issued changes to CR 2475 Transmittal AB-02-175 regarding use of the -CB modifier for dialysis services. The guidance issued on submission of the “CB” modifier is being modified to no longer require that the provider/supplier determine that the beneficiary is in a SNF Part A stay. A provider or supplier may use the “CB” modifier only when it has determined that (a) the beneficiary has ESRD entitlement, (b) the test is related to the dialysis treatment for ESRD, (c) the test is ordered by a doctor providing care to patients in the dialysis facility, and (d) the test is not included in the dialysis facility’s composite rate payment.