BACKGROUND In 2000, the Scandinavian Neurotrauma Committee (SNC) published evidence-based guidelines for the management of minimal, mild or moderate head injuries. Since then, considerable new evidence has emerged on the clinical use of these guidelines and on the radiation risks associated with computer tomographic (CT) examinations. The SNC has recently published updated Scandinavian guidelines. Here we present the Norwegian version of the updated guidelines with emphasis on the professional recommendations and the reasons the new guidelines were necessary, plus comments from the Norwegian authors.MATERIALS AND METHODS A task force appointed by the SNC compiled recommendations based on a systematic, evidence-based review. These recommendations were revised through consensus in the SNC and through consultation with relevant clinical experts.RESULTS A blood test of the brain injury biomarker S100B is for the first time recommended as an initial diagnostic measure for mild head injury patients with low risk. Of these patients, CT examination is only recommended for those who show a pathologically elevated S100B. CT examination is still the recommended routine for moderate head injury patients and for mild head injury patients with medium to high risk. An updated information sheet on head injuries has also been compiled for patients and their relatives.CONCLUSION The SNC recommends the implementation of these guidelines in Norway.