ICD-9-CM 493.20 Chronic obstructive asthma, unspecified

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    2014 ICD-9-CM

    Clarifying Terms

    from 493.2
    Asthma with chronic obstructive pulmonary disease [COPD]
    Chronic asthmatic bronchitis
    2014 ICD-9-CM

    Excludes

    from 493.2
    Acute bronchitis (466.0)
    Chronic obstructive bronchitis (491.20-491.22)
    from 493
    Wheezing NOS (786.07)
    2014 ICD-9-CM

    Notes

    from 460-519
    Use additional code to identify infectious organism
    2014 ICD-9-CM
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