2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Respiratory System 460-519 > Acute Respiratory Infections 460-466 > Acute Laryngitis And Tracheitis 464.* > 2008 ICD-9-CM Diagnosis 464.11 Acute tracheitis with obstruction  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 Therefore, this code may be out of date.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 464.11 can be accessed here. 464.11 is a specific code that can be used to specify a diagnosis 464.11 contains 4 index entries View the ICD-9-CM Volume 1 464.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 464.11: Catarrh, catarrhal (inflammation) (see also condition) 460 tracheitis 464.10 with obstruction 464.11 Congestion, congestive trachea 464.11 Tracheitis (acute) (catarrhal) (infantile) (membranous) (plastic) (pneumococcal) (septic) (suppurative) (viral) 464.10 with obstruction 464.11 edematous 464.11