Opioid use disorder risk assessment tools cannot be used in isolation. In combination with standardized clinical examination, and, when indicated, urine drug screening, a validated risk assessment tool, improves the ability to detect opioid misuse. Even though no single tool has been shown to have both high interobserver reliability and high sensitivity, the standardized approach has still been shown to be superior to subjective care giver assessment. This article will provide a global approach to risk assessment in addition to reviewing the available tools.