[Choosing Wisely: rationale, implementation, and evaluation].

"Klug entscheiden" (Choosing Wisely) is an initiative launched by the German Society for Internal Medicine (DGIM) to boost the quality of medical indication by identifying both medical/therapeutic over- and underuse. Twelve specialist societies for internal medicine and DGIM associated societies develop corresponding recommendations which are subsequently evaluated and rejected or approved in a structured procedure by a multidisciplinary commission. Since 2016, 115 positive and negative recommendations have been developed and released for print media, radio and television. Physicians can obtain the DGIM/BDI* certificate "Klug entscheiden". First steps have been undertaken to implement "Klug entscheiden" in medical education. The wide dissemination and intense discussions give a reason to hope that positive and negative recommendations will be put into practice and that the awareness towards the relevance of the quality of medical indication will grow. And finally, specific recommendations are to be developed the implementation of which can be evaluated prospectively. * Professional organization of German specialists for internal medicine.