Definitive Drug Testing Guide
This resource provides clinicians with practical guidance for determining, documenting, and supporting the medical necessity of definitive drug testing across chronic pain management, substance use disorder (SUD) treatment, behavioral health, and other medication-monitoring settings. The guide outlines payer and regulatory considerations, risk-based testing frequency recommendations, indications for definitive versus presumptive testing, and documentation best practices that support appropriate test utilization. It also includes an example medical necessity checklist to help providers align test selection, clinical rationale, and treatment decisions with common coverage criteria while promoting patient safety, treatment adherence, and evidence-based care.
