Utilizing Mobile Health to Expedite Access to Specialty Care for Youth Presenting to the Emergency Department With Concussion at Highest Risk of Developing Persisting Symptoms

Inclusion Criteria

Inclusion Criteria for concussed subjects: * Males and females age 13 - 18 * Present to the Children's Hospital of Philadelphia (CHOP) Emergency Department (ED) within 72 hours of head injury * Meet criteria for concussion as defined by the most recent International Consensus Statement on Concussion * Own a smartphone * Meet criteria for moderate-to-high risk for Persistent Post-Concussion Symptoms according to 5P rule (score \>3/12) Exclusion Criteria for concussed subjects: * Glasgow Coma Scale score \<13 * Lower extremity trauma * A prior concussion within 1 month * Non-English speaking * Admission to the hospital at the initial head injury visit * Previously enrolled in the study * Inability to complete study procedures. Inclusion Criteria for parents: * Child meets the study eligibility criteria Exclusion Criteria for parents: * Non-English speaking Inclusion Criteria for providers: * ED or specialty provider caring for at least one patient via the mobile Health (mHealth)-facilitated care handoff strategy Exclusion Criteria for providers: * Non-English speaking