The PIP module for PTSD has been designed to be relevant across clinical settings (e.g. inpatient, outpatient), straightforward and easy to complete, and usable in a pen-and-paper format to aid adoption. As with other retrospective chart reviews, some questions on the form relate to the initial assessment and treatment of patients, whereas others relate to subsequent care. In general, treatment options for newly diagnosed patients who are being treated for the first time should judiciously follow the first-line evidence-based treatment recommendations. On occasion, however, there may be appropriate clinical reasons for deviation from recommended care, including patient preferences, co-occurring psychiatric or medical conditions and therapeutic benefits or side effects of prior treatments.