Specific code 2009 ICD-9-CM Diagnosis Code 496
Chronic airway obstruction not elsewhere classified
  • Short description: CHR AIRWAY OBSTRUCT NEC.
  • ICD-9-CM 496 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 496 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
  • You are viewing the 2009 version of ICD-9-CM 496.
  • More recent version(s) of ICD-9-CM 496: 2010 2011 2012 2013 2014.
Note
This code is not to be used with any code from categories 491-493
Disease Synonyms
  • Acute exacerbation of chronic obstructive airways disease
  • Chronic nonspecific lung disease
  • Chronic obstructive lung disease
  • Chronic obstructive pulmonary disease (copd)
  • Chronic obstructive pulmonary disease (COPD) mild
  • Chronic obstructive pulmonary disease (COPD) moderate
  • Chronic obstructive pulmonary disease (COPD) severe
  • Chronic obstructive pulmonary disease with acute lower respiratory infection
  • Copd
  • COPD (chronic obstructive pulmonary disease)
  • COPD stage 1 mild (FEV1 80-100%)
  • COPD stage 2 moderate (FEV1 50-79%)
  • COPD stage 3 severe (FEV1 30-49%)
  • COPD stage 4 very severe (FEV1 0-29%)
  • End stage chronic obstructive airways disease
  • Mild chronic obstructive pulmonary disease
  • Moderate chronic obstructive pulmonary disease
  • Nonspecific lung disease, chronic
  • Severe chronic obstructive pulmonary disease
496 Excludes
Applies To
  • Chronic:
    • nonspecific lung disease
    • obstructive lung disease
    • obstructive pulmonary disease [COPD] NOS
Convert to ICD-10-CM: 496 converts approximately to:
  • 2014 ICD-10-CM J44.9 Chronic obstructive pulmonary disease, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 496:
  • Bronchorrhea (chronic) (purulent) 491.0
    • acute 466.0
      • with
        • asthma - see Asthma
        • bronchiolitis, acute 466.19
          • due to respiratory syncytial virus 466.11
        • bronchitis - see Bronchitis
        • chronic obstructive pulmonary disease (COPD) 496
        • emphysema - see Emphysema
          • due to external agent - see Condition, respiratory, acute, due to
      • acute 519.11
      • exercise induced 493.81
  • Disease, diseased - see also Syndrome
    • pulmonary - see also Disease, lung
      • amyloid 277.39 [517.8]
      • artery 417.9
      • circulation, circulatory 417.9
      • diffuse obstructive (chronic) 496
        • with
          • acute bronchitis 491.22
          • asthma (chronic) (obstructive) 493.2
          • exacerbation NEC (acute) 491.21
      • heart (chronic) 416.9
      • hypertensive (vascular) 416.0
      • obstructive diffuse (chronic) 496
      • valve (see also Endocarditis, pulmonary) 424.3
    • respiratory (tract) 519.9
      • acute or subacute (upper) NEC 465.9
      • chronic 519.9
        • arising in the perinatal period 770.7
        • due to fumes or vapors 506.4
      • due to
      • fetus or newborn NEC 770.9
      • obstructive 496
      • specified type NEC 519.8
      • upper (acute) (infectious) NEC 465.9
  • DOPS (diffuse obstructive pulmonary syndrome) 496
  • Obstruction, obstructed, obstructive
    • airway NEC 519.8
      • with
        • allergic alveolitis NEC 495.9
        • asthma NEC (see also Asthma) 493.9
        • bronchiectasis 494.0
          • with acute exacerbation 494.1
        • bronchitis (see also Bronchitis, with, obstruction) 491.20
        • emphysema NEC 492.8
      • chronic 496
        • with
          • allergic alveolitis NEC 495.5
          • asthma NEC (see also Asthma) 493.2
          • bronchiectasis 494.0
            • with acute exacerbation 494.1
          • bronchitis (chronic) (see also Bronchitis, chronic, obstructive) 491.20
          • emphysema NEC 492.8
      • due to
    • lung 518.89
      • with
        • asthma - see Asthma
        • bronchitis (chronic) 491.20
        • emphysema NEC 492.8
      • airway, chronic 496
      • chronic NEC 496
        • with
          • asthma (chronic) (obstructive) 493.2
      • disease, chronic 496
        • with
          • asthma (chronic) (obstructive) 493.2
      • emphysematous 492.8
    • respiratory 519.8
      • chronic 496
  • Syndrome - see also Disease
    • diffuse obstructive pulmonary 496
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 496 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 2009 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.