Hypersensitivity Pneumonitis Make an Appointment Find a Doctor Ask a Question Reviewed by Cecile S. Rose, MD, MPH (June 01, 2012) Hypersensitivity pneumonitis (HP) is an inflammation of the lungs caused by inhaling a foreign substance. These foreign substances can stimulate an immune reaction in the small airways and air sacs of the lung. This may lead to acute lung disease. Over time and with continued exposure to the causative substance, long-lasting (chronic) lung disease with permanent scarring can occur. Programs & Services Deployment-Related Lung Disease Center Clinical Trials Can Investigational Medication Benefit FHP Patients? × Safely Get the Care You Need We are ready to help you stay healthy with many same-day appointments available and are taking every precaution to ensure your safety. To make an appointment, call 303.398.1355 or schedule online today. COVID-19 Testing and Care Swab (PCR) and Antibody testing appointments can be booked online and are available with results in 24-48 hours. If you are experiencing symptoms, we have same-day appointments in our adult and pediatric COVID-19 treatment clinics in dedicated areas. We also offer care for those wo have had COVID-19 in our Center for Post-COVID-19 Care and Recovery. Learn more about our specialized COVID-19 care. Vaccine Information The vaccine has arrived and we are working through Colorado’s state-guided phases of vaccination. Visit our COVID-19 Vaccines page for more information on timing and availability. Close
Reviewed by Cecile S. Rose, MD, MPH (June 01, 2012) Hypersensitivity pneumonitis (HP) is an inflammation of the lungs caused by inhaling a foreign substance. These foreign substances can stimulate an immune reaction in the small airways and air sacs of the lung. This may lead to acute lung disease. Over time and with continued exposure to the causative substance, long-lasting (chronic) lung disease with permanent scarring can occur.