Behavioral health services continue to experience significant growth as healthcare organizations expand access to mental health and substance use disorder treatment. At the same time, coding and billing requirements have become increasingly complex, requiring coding professionals to navigate a wide array of services, documentation standards, care models, and reimbursement rules. This session moves beyond introductory behavioral health coding concepts and explores the nuanced coding challenges that impact compliance, reimbursement, and revenue integrity. Attendees will gain a deeper understanding of commonly misunderstood behavioral health services, including psychiatric diagnostic evaluations, psychotherapy, crisis services, psychological testing, substance use disorder treatment, and emerging integrated care models. Participants will learn how documentation requirements support accurate code selection and how coding professionals can identify opportunities for improved specificity and compliance. The session will also examine the growing role of Collaborative Care Management (CoCM), Behavioral Health Integration (BHI), and team-based care approaches that require careful coordination between providers, coders, and billing teams. Through real-world case studies and coding scenarios, attendees will explore common audit findings, documentation deficiencies, modifier usage, time-based reporting requirements, and challenges associated with tele behavioral health services. The session will also address payer variations, medical necessity considerations, and coding risks that frequently result in denials or compliance concerns. In addition to technical coding guidance, participants will discover strategies for educating providers on behavioral health documentation requirements and supporting accurate capture of services across multiple care settings. Attendees will leave equipped with practical knowledge and tools that can immediately be applied to improve coding accuracy, reduce denials, and strengthen compliance efforts. Whether you are a coder, auditor, CDI specialist, compliance professional, provider educator, or revenue cycle leader, this session provides actionable insights to help navigate the evolving behavioral health coding landscape with confidence.