491.22 OBS CHR BRONC W AC BRONC

Home > ICD-9 List > Diseases of the respiratory system > Chronic obstructive pulmonary disease and allied conditions (490-496) > 491 Chronic bronchitis > 491.22

Code Information

Diagnosis Code: 491.22

Short Description: Obs chr bronc w ac bronc

Long Description: Obstructive chronic bronchitis with acute bronchitis

Code Classification:

Diseases of the respiratory system (460–519)
- Chronic obstructive pulmonary disease and allied conditions (490-496)
  - 491 Chronic bronchitis
    - 491.22 Obs chr bronc w ac bronc

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 491.22 has the following ICD-9-CM references to the Index of Diseases and Injuries

Blue
- bloater 491.20
  - with
    - acute bronchitis 491.22

Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490
- with
  - obstruction airway, chronic 491.20
    - with
      - acute bronchitis 491.22
- chronic 491.9
  - obstructive 491.20
    - with
      - acute bronchitis 491.22
- emphysematous 491.20
  - with
    - acute bronchitis 491.22
- obstructive (chronic) 491.20
  - with
    - acute bronchitis 491.22

Disease, diseased - see also Syndrome
- lung NEC 518.89
  - obstructive (chronic) (COPD) 496
    - with
      - acute
        bronchitis 491.22
      - bronchitis (chronic) 491.20
        with
        acute bronchitis 491.22
- pulmonary - see also Disease, lung
  - diffuse obstructive (chronic) 496
    - with
      - acute bronchitis 491.22
  - obstructive diffuse (chronic) 496
    - with
      - acute bronchitis 491.22
      - bronchitis (chronic) 491.20
        acute 491.22

Emphysema (atrophic) (centriacinar) (centrilobular) (chronic) (diffuse) (essential) (hypertrophic) (interlobular) (lung) (obstructive) (panlobular) (paracicatricial) (paracinar) (postural) (pulmonary) (senile) (subpleural) (traction) (unilateral) (unilobular) (vesicular) 492.8
- with bronchitis
  - chronic 491.20

Syndrome - see also Disease
- blue
  - bloater 491.20

Crosswalk Information

The code 491.22 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
491.22		J44.0	Chronic obstructive pulmon disease w acute lower resp infct

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
491.1	Mucopurulent chronic bronchitis
491.20	Obstructive chronic bronchitis without exacerbation
491.21	Obstructive chronic bronchitis with (acute) exacerbation
491.8	Other chronic bronchitis
491.9	Unspecified chronic bronchitis

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

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