We were recently at a coding conference where the spokesperson commented on the 2012 medicare rule regarding patients bringing in their own medications to have the nurse do the administration (96372). Before, we would put the description of the medication, how much was given and how it was administered (IM). We were told we are now to use the J code for the medication as if to list it to be charge-but to make it zero dollar. Our clearinghouse has rejected these codes because we have been made them zero. Could someone help in clearing this up? We seemed to be unable to find the actual medicare guidelines for this type of "brown bagging". We would appreciate any help.