Unified Parkinson's Disease Rating Scale Clinical Classification

**Semantic type:** Intellectual Product

**Definition:** A standardized rating scale originally developed by S. Fahn, R. Elton, and other members of the UPDRS Development Committee in 1987 which is used to evaluate the status of a patient's Parkinson's disease. This instrument is made up of 6 parts consisting of a mental, behavior and mood section, an activities of daily living section, a motor examination, and questions concerning any complications with the patient's current therapy as well as modified versions of the Hoehn and Yahr Staging assessment and the Schwab and England Activities of Daily Living Scale. Each question is either scored with a 0 for a 'no' response and 1 for a 'yes' response or with a 0-4 point scale.

**Synonyms:** - UPD1 - UPDRS