Pediatric Adverse Events Terminology Perinatal Terminology Pediatric Adverse Events Terminology Mapped to MedDRA NICHD Terminology Bronchopulmonary Dysplasia NICHD Chronic lung disease requiring treatment with oxygen for at least 28 days and with a spectrum of severity from mild to severe, that predominantly affects premature infants. While the radiologic pattern is typical in the closer to term patient, the pattern in the small preterm infant is very non-discrete and variable. Bronchopulmonary Dysplasia A chronic lung disorder associated with pulmonary maldevelopment, scarring, and/or inflammation that develops in preterm neonates. The condition is defined based on treatment with supplemental oxygen for at least 28 days adjusted for the degree of prematurity. BPD Disease or Syndrome C0006287 C90599 MedDRA Bronchopulmonary Dysplasia Bronchopulmonary dysplasia Chronic Lung Disorder Neonatal Research Network Terminology