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2008 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.* > 2008 ICD-9-CM Diagnosis 493.11 Intrinsic asthma with status asthmaticus  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 Therefore, this code may be out of date.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 493.11 can be accessed here. 493.11 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 493.* hierarchy