Neurorehabilitation aims to reduce the impact of the impairments caused by acquired brain injury (ABI). Nowadays, rehabilitation therapies are designed based on neuropsychological assessment batteries. In order to achieve a more personalized and evidence based neurorehabilitation treatments, it could be necessary to combine theoretical, structural and neuropsychological information. This paper proposes a dynamic knowledge representation system that provides a new cognitive dysfunctional profile for ABI patient. This proposed dysfunctional profile aims to help therapists to enhance rehabilitation results but also to increase the quality of the neurorehabilitation body of knowledge.