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ICD-9-CM
8. DISEASES OF THE RESPIRATORY SYSTEM (460-519) Use additional code to identify infectious organism
CHRONIC OBSTRUCTIVE PULMONARY DISEASE AND ALLIED CONDITIONS (490-496)
491 Chronic bronchitis Excludes: chronic obstructive asthma (
491.2 Obstructive chronic bronchitis
491.2 Obstructive chronic bronchitis
ICD-9-CM Code 491.20
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ICD-9-CM Code 491.21
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Lorem ipsum dolor sit amet consectetur adipisicing elit. Quisquam, quos.
ICD-9-CM Code 491.22
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Lorem ipsum dolor sit amet consectetur adipisicing elit. Quisquam, quos.