mTBI Pocket Guide, for iPhone, iPad, and Android devices, is a resource for people suffering from mild traumatic brain injury, a condition that may cause communication and thinking problems. Created by the National Center for Telehealth and Technology, the app is geared toward service members and veterans. Clinicians can use it as a reference to recognize and manage patients' symptoms, and the app's interactive decision trees help identify the best interventions for patients. mTBI Pocket Guide reflects current clinical standards of care, including guidelines from the U.S. Department of Defense. A key feature is the ICD-9 coding wizard, a documentation tool for providers.