obsolete_chronic bronchitis true true http://purl.obolibrary.org/obo/MONDO_0005607 SNOMEDCT:63480004 3.88.0 MedDRA:10008841 MedDRA:10008843 ICD9:491 Replaced by Mondo term MONDO_0005607, with which this term was previously merged. Use: http://purl.obolibrary.org/obo/MONDO_0005607 NCIt:C26722 A type of chronic obstructive pulmonary disease characterized by chronic inflammation in the bronchial tree that results in edema, mucus production, obstruction, and reduced airflow to and from the lung alveoli. The most common cause is tobacco smoking. Signs and symptoms include coughing with excessive mucus production, and shortness of breath.