Schedules for Clinical Assessment in Neuropsychiatry (SCAN) is a set of tools created by WHO aimed at diagnosing and measuring mental illness that may occur in adult life. It is not constructed explicitly for use with either ICD-10 or DSM-IV but can be used for both systems. The SCAN system was originally called PSE, or Present State Examination, but since version 10 (PSE-10), the commonly accepted name has been SCAN. The current version of SCAN is 2.1.