Patient Reported Outcome Instruments in Sarcoidosis

Inclusion Criteria: * Diagnosis of sarcoidosis by established criteria. * Patient has completed pulmonary function tests (spirometry) as per standard of care at the enrollment visit. * Ability to understand and read English at least at a 7th grade level. * Have access to a computer, iPad, smart phone, or another electronic device that will support the on-line sarcoidosis assessment platform. * The subject is willing to wear a daily activity and sleep tracker wristband (Fitbit ™ wristband) for 6 months. Exclusion Criteria: • Life expectancy of \< 1 year.