J-code
A J-code is just one of the many HCPCS codes that were originally developed to report injectable drugs that generally cannot be self-administered such as, chemotherapy, immunosuppressive drugs, and inhalation solutions as well as some orally-administered drugs. Still frequently used by many medical providers, this early billing system cannot provide the level of billing detail required to closely monitor the true costs of drug therapy and to control and accurately pay for the precise medication that was administered to the patient.