The Movement Disorders Society Unified Parkinson Disease Rating Scale (MDS-UPDRS) is an internationally used and validated scale developed to assess the severity­ Parkinson’s disease. The scale consists of four parts: (i) non-motor experiences of daily life; (ii) motor experiences of everyday life; (iii) motor examination and (iv) motor complications. The “motor examination” is suitable for scoring parkinsonism, such as medication-induced parkinsonism. The items cover speech, facial expression, rigidity, bradykinesia, automatic movements, coordination, gait, postural stability and tremor. This “motor research” of the UPDRS is used in scientific research but has less value in daily practice.

Goetz CG, Tilley B, Shaftman SR et al. MDS-Unified Parkinson’s Disease Rating Scale (MDS-UPDRS). Official MDS Translation: Dutch. 2008.