Clinical Characteristics of Fibromyalgia in a Chronic Pain Population

Objective To compare fibromyalgia ( FM ) characteristics among patients identified in a community‐based chronic pain cohort based on traditional International Classification of Diagnoses 9th revision ( ICD ‐9) diagnostic coding, with that of patients identified using a novel predictive model. Methods This retrospective study used data collected from July 1999 to February 17, 2015, in multiple chronic pain clinics in the United States. Patients...