The orthopedic surgeons in my office occasionally bill injection code 20550, but we have never billed the HCPCS code for the medication. The decision not to bill the supply was made by a former administrator, and nobody here knows why we would not bill. Somebody suggested it is because we need CLIA numbers, but I am not certain that we do as we bill for Xiaflex. Have we just been missing out on the supply reimbursement? Should I just start billing out the meds? Our practice is in CT if that makes a difference. Instruction regarding this will be greatly appreciated.