The practice of determining a patient’s emotional, socio- emotional, behavioral, or mental symptoms as a diagnosable disorder in accordance with the Diagnostic and Statistical Manual of Mental Disorders (DSM; most current edition) and International Classification of Disease (ICD; most current edition). All diagnosis at C4 Therapy should be accompanied with a screener, assessment, and conceptualization for conclusions. Medical rule out should always be a consideration in clinical diagnosis with cultural and proscribed or illicit drug use.