Have a provider billing for 01992-QK and 01992-QX for a diagnostic spinal injection. Neither is performing the actual injection. The documentation supports conscious sedation. Are they both entitled to bill 01992? or should it be coded as 99149 and, in the latter case, are both the MD and CRNA entitled to bill for conscious sedation?? All my research states that in order to bill 01992, it has to meet the requirements of MAC. only versed and fentanyl is given and actually supports conscious sedation. How should this situation be coded? Please Help!!! or let me know of a valuable site where I can find the answer.