obsolete_emphysema true true SNOMEDCT:49158009 http://purl.obolibrary.org/obo/MONDO_0004849 EMPHYSEMA, PULMONARY MedDRA:10014561 NCIt:C3348 DOID:9675 A subcategory of chronic obstructive pulmonary disease (COPD). It occurs in people who smoke and suffer from chronic bronchitis. It is characterized by inflation of the alveoli, alveolar wall damage, and reduction in the number of alveoli, resulting in difficulty breathing. James Malone 3.88.0 Replaced by Mondo term MONDO_0004849, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0004849 MESH:D004646 ICD10:J43 Pulmonary Emphysema ICD9:492