So patient is allergic to the med that he needs in order to treat a life threatening condition. So we put the patient in ICU and inject him three times a day with this med so he is desensitized and can take the med. Dr. who orders this is not the one injecting but checks on the patient before office visits for the day, at lunch, and after the office is closed. This goes on for three days. The code says "each hour". Is this each hour the doctor is present or how many hours it took from beginning to end of the procedure (36 hours might raise some red flags). Since there aren't any time documentation in the notes would I just code a minimum of three hours a day since there is documentation that he was there three times a day? Any ideas?