I know that there is no charge for the first cast but cast supplies are still billable. If the surgeon I work for puts on a splint or bulky dressing in the operating room and then a few days later the patient comes into the office for a cast can I bill for the cast and cast supplies? I know I could if he had applied the splint in our office and then the patient came back for the cast but since it was applied at the facility I'm not sure.