The clinical relevance of a partial remission specifier for posttraumatic stress disorder (PTSD) was examined. Using a subgroup of outpatients from the Rhode Island Methods to Improve Diagnostic Assessment and Services project who met criteria for lifetime PTSD (N = 261), participants with current PTSD, PTSD in partial remission, and PTSD in full remission were compared on various indices of impairment. A substantial number (n = 75) of patients met criteria for PTSD in partial remission (28.7%). Outpatients in partial remission of PTSD displayed comparable levels of social and employment functioning as those with current PTSD, and over half of these patients requested treatment for their symptoms. Results support the clinical utility of a partial remission specifier for PTSD.