Home > 2011 ICD-9-CM Diagnosis Codes > Diseases Of The Respiratory System 460-519 > Chronic Obstructive Pulmonary Disease And Allied Conditions 490-496 > Chronic bronchitis 491-
2011 ICD-9-CM Diagnosis Code 491.20
Obstructive chronic bronchitis without exacerbation
- Short description: Obst chr bronc w/o exac.
- ICD-9-CM 491.20 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
- You are viewing the 2011 version of ICD-9-CM 491.20.
- More recent version(s) of ICD-9-CM 491.20: 2012 2013.
Applies To
- Emphysema with chronic bronchitis
Convert 491.20 to ICD-10-CM 
ICD-9-CM 491.20 converts approximately to:
- 2013 ICD-10-CM J44.9 Chronic obstructive pulmonary disease, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 491.20:
- Blue
- Bronchitis (diffuse) (hypostatic) (infectious) (inflammatory) (simple) 490
with
- Disease, diseased - see also Syndrome
- lung NEC 518.89
black 500- congenital 748.60
- cystic 518.89
congenital 748.4
- fibroid (chronic) (see also Fibrosis, lung) 515
- fluke 121.2
- oriental 121.2
- in
- interstitial (chronic) 515
- acute 136.3
- nonspecific, chronic 496
- obstructive (chronic) (COPD) 496
- polycystic 518.89
- purulent (cavitary) 513.0
- restrictive 518.89
- rheumatoid 714.81
- diffuse interstitial 714.81
- specified NEC 518.89
- pulmonary - see also Disease, lung
- 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
- Obstruction, obstructed, obstructive
- Syndrome - see also Disease
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 491.20 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2011 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
|
Free 2013 ICD-9-CM Codes
|
Free 2013 ICD-10-CM/PCS Codes
|
|
Free 2007-2012 ICD-9-CM Codes
|
Free 2007-2013 HCPCS Codes
|
|
Site Information
|