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491.20 - Obstructive Chronic Bronchitis Without Exacerbation


The ICD 9 Code for Obstructive chronic bronchitis without exacerbation is listed as 491.20.
Additional information concerning this code and description can be found below including ICD 10 crosswalks / GEMS, and chapter information where available.
ICD 9 CM Field Value
Diagnosis Code: 491.20
Long Description: Obstructive chronic bronchitis without exacerbation
Short Description: Obst chr bronc w/o exac
Chapter: Diseases Of The Respiratory System
Block: Chronic Obstructive Pulmonary Disease And Allied Conditions (490-496)
ICD-10-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD-10-CM Code: J44.9 - Chronic obstructive pulmonary disease, unspecified (approximate)
ICD-9-CM Siblings (same level / similar specificity) of 491.20:
491.21 - Obstructive chronic bronchitis with (acute) exacerbation
491.22 - Obstructive chronic bronchitis with acute bronchitis