2007 ICD-9-CM Procedure 90.3 Microscopic examination of specimen from ear, nose, throat, and larynx 90.3 is a non-specific code that should not be used to specify a procedure 90.3 contains 7 index entries View the full Volume 3 90.* hierarchy Index entries containing 90.3: Examination (for) microscopic (specimen) (of) 91.9 adenoid 90.3 ear 90.3 larynx 90.3 nose 90.3 pharynx 90.3 throat 90.3 tonsil 90.3