Interdisciplinary communication and consultation take up a relevant part of the radiological workload. They are essential for high-quality and ubiquitous medical care. There are different modalities of interdisciplinary communication, each with its own advantages and disadvantages. This article provides information on requirements regarding infrastructure and personnel as well as important medicolegal aspects of second opinion reports and interdisciplinary boards. It also reveals the striking discrepancy between the effort required by an institute and the inadequate reflection regarding remuneration in the billing systems.