Nationally, among the commercially insured population, patients with opioid use disorder diagnoses showed an overall increase from 2021 to 2024, according to FAIR Health’s Opioid Tracker . In 2021, there were 386 patients with opioid use disorder diagnoses per 100,000 patients, whereas in 2024 there were 539, an increase of 39.8% (Figure 1). The Opioid Tracker includes a heat map representing patients with opioid use disorder diagnoses per 100,000 patients receiving medical services in 2024 for each state. The key findings revealed by the Opioid TrackerIn 2024, Tennessee had the highest rate of commercially insured patients receiving treatment for opioid use disorder, with 1447 patients with such a diagnosis per 100,000 patients (Figure 2). Among commercially insured patients with opioid use disorder diagnoses nationally in 2024, men were 55.7% of patients with those diagnoses, while women were 44.3%.