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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Chronic Obstructive Pulmonary Disease And Allied Conditions 490-496 > Asthma 493.* > 2007 ICD-9-CM Diagnosis 493.81 Exercise-induced bronchospasm  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 493.81 can be accessed here. 493.81 is a specific code that can be used to specify a diagnosis 493.81 contains 2 index entries View the ICD-9-CM Volume 1 493.* hierarchy Index entries containing 493.81: Asthma, asthmatic (bronchial) (catarrh) (spasmodic) 493.9 exercise induced bronchospasm 493.81 Bronchorrhea (chronic) (purulent) 491.0 acute 466.0 exercise induced 493.81