the new descriptor does include image guidance, but rememeber when billing anesthesia you should always choose your code based on the PRIMARY procedure (i.e., the main reason they are there). in this case the primary procedure is the injection, not the fluoro, so you would choose your anesthesia code based on that. with a discography, the main purpose of the procedure is to take images and get a diagnostic impression (there may be an injection of contrast, but again that's not the primary procedure), so in that case 01935 would be appropriate. unfortunately there's an error in the ASA crosswalk, and it's causing people a lot of confusion.