Question: Which of the following describes the purpose of the Level 1 PASRR screen? To screen for Medicaid payer source. To screen for neurological disorders including Parkinson's disease and Huntington's chorea. To screen for substance abuse disorder (SUD). To screen for possible mental illness (MI), intellectual disability (ID), developmental disability (DD), or related conditions in all individuals who are admitted to a Medicaid certified nursing facility, regardless of the individual's payment source.