Home > 2006 ICD-9-CM Diagnosis Codes > Diseases Of The Respiratory System 460-519 > Chronic Obstructive Pulmonary Disease And Allied Conditions 490-496 > Chronic bronchitis 491-
Non-specific code 2006 ICD-9-CM Diagnosis Code 491.2
Obstructive chronic bronchitis
  • There are 3 ICD-9-CM codes below 491.2 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
  • You are viewing the 2006 version of ICD-9-CM 491.2.
  • More recent version(s) of ICD-9-CM 491.2: 2007 2008 2009 2010 2011 2012 2013 2014 2015.
491.2 Excludes
  • asthmatic bronchitis (acute) (NOS) 493.9
  • chronic obstructive asthma 493.2
Applies To
  • Bronchitis:
    • emphysematous
    • obstructive (chronic) (diffuse)
  • Bronchitis with:
    • chronic airway obstruction
    • emphysema
 491.1 ICD9Data.com 491.20 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 491.2 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 2006 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
Free ICD-9-CM Codes
Site Information
Free ICD-10-CM/PCS Codes
Free HCPCS Codes