Do you find that you have several questions in regards to injection codes? Well, if you do then you certainly not alone! In order to determine which of the codes apply for certain injection procedures, you can use a couple of great guidelines that are sure to help you out. Perhaps you have a question on whether or not supervision plays a role in the code that you need to report. Is the physician for the patient in the office and available while the injection is going to be taking place? When the answer to this is yes, you can feel confident in reporting code 90772. A code of 9921 …