2006 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.* > 2006 ICD-9-CM Diagnosis 380.31 Hematoma of auricle or pinna View the most recent version of ICD-9-CM 380.31 380.31 is a specific code that can be used to specify a diagnosis 380.31 contains 4 index entries View the ICD-9-CM Volume 1 380.* hierarchy  Index entries containing 380.31: Hematoma (skin surface intact) (traumatic) - see also Contusion auricle (ear) 380.31 external ear 380.31 pinna 380.31 Othematoma 380.31