The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, Text Revision (DSM-5-TR) serves as a classification system for mental disorders employed by mental health professionals in North America and several other nations. This course's primary objective is to enhance the learner's capacity to access and utilize the information contained in this manual within their healthcare professional career. Following an examination of the history of the DSM-5-TR, this course assists learners in recognizing the factors and criteria essential for diagnosing and treating mental illnesses, as well as gaining familiarity with certain assessment screening tools.