Relates ICD-9 Codes to 491.9

Unspecified chronic bronchitis

ICD-9 Index
Chapter: 460–519
Section: 490-496
Block: 491 Chronic bronchitis
491.9 - Chronic bronchitis NOS

View Code 491.9

491.0 - Simple chronic bronchitis
491.1 - Mucopurulent chronic bronchitis
491.20 - Obstructive chronic bronchitis without exacerbation
491.21 - Obstructive chronic bronchitis with (acute) exacerbation
491.22 - Obstructive chronic bronchitis with acute bronchitis
491.8 - Other chronic bronchitis

Previous Code: 491.8

View Code 491.9

Next Code: 492.0

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