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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Diseases Of The Ear And Mastoid Process 380-389 > Disorders Of External Ear 380.* > 2007 ICD-9-CM Diagnosis 380.4 Impacted cerumen  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 Therefore, this code may be out of date.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 380.4 can be accessed here. 380.4 is a specific code that can be used to specify a diagnosis 380.4 contains 4 index entries View the ICD-9-CM Volume 1 380.* hierarchy 380.4 also known as: Wax in ear Index entries containing 380.4: Cerumen (accumulation) (impacted) 380.4 Ear - see also condition wax 380.4 Impaction, impacted cerumen (ear) (external) 380.4 Wax in ear 380.4