RecruitingClinical trialFacilitating Access to Specialty TreatmentThe goal of this hybrid implementation-effectiveness study is to evaluate the effectiveness (hastened recovery times) and feasibility (fidelity in connecting to concussion specialty care) of a novel mobile health intervention, designed to reduce disparities in access to specialty care through the use of remote patient monitoring (RPM) to facilitate care hand-off from the emergency department (ED) to concussion specialty care. Participants will report their symptoms and activity once daily through RPM chat technology that is linked to their electronic health record and prompts referral to specialty care.