A pain measurement and diagnostic system (PMD) for bioanalytical analysis of pain matrix activity and the autonomic nervous system to diagnose and validate patient treatments, health status and outcomes. The PMD is implemented using medical devices for measuring and reporting the objective measurements of pain through patient monitoring and analyzing related biological, physiological, social, environmental, and demographic factors that may contribute to and effect physiological outcomes for patients and through the integrated and iterative analysis, improve diagnosis of pain, the evaluation of related disease states, and treatment options.