SSA published SSR 12-2p, “Evaluation of Fibromyalgia” on July 25, 2012. This Social
Security Ruling (SSR), which took effect upon publication, explains our policies for
developing evidence to establish that a person has a medically determinable impairment
(MDI) of fibromyalgia (FM). SSR 12-2p also explains how we evaluate FM in disability
claims and continuing disability reviews under titles II and XVI of the Social Security
Act.