491.1 MUCOPURUL CHR BRONCHITIS

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Code Information

Diagnosis Code: 491.1

Short Description: Mucopurul chr bronchitis

Long Description: Mucopurulent chronic bronchitis

Code Classification:

Diseases of the respiratory system (460–519)
- Chronic obstructive pulmonary disease and allied conditions (490-496)
  - 491 Chronic bronchitis
    - 491.1 Mucopurul chr bronchitis

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 491.1 has the following ICD-9-CM references to the Index of Diseases and Injuries

Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490
- chronic 491.9
  - mucopurulent 491.1
  - purulent 491.1
- fetid (chronic) (recurrent) 491.1
- mucopurulent (chronic) (recurrent) 491.1
  - acute or subacute 466.0
- pituitous 491.1
- purulent (chronic) (recurrent) 491.1
  - acute or subacute 466.0
    - with bronchospasm or obstruction 466.0
- putrid 491.1
- suppurative (chronic) 491.1
  - acute or subacute 466.0

Crosswalk Information

The code 491.1 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
491.1		J41.1	Mucopurulent chronic bronchitis

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
491.0	Simple 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
491.9	Unspecified chronic bronchitis

This page was last updated on: 10/1/2014

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