ICD-9-CM Procedure 18 Operations on external ear 18 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.0 Incision of external ear 18.0 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.01 Piercing of ear lobe 18.01 is a specific code that can be used to specify a procedure 18.01 contains 1 index entry ICD-9-CM Procedure 18.02 Incision of external auditory canal 18.02 is a specific code that can be used to specify a procedure 18.02 contains 4 index entries ICD-9-CM Procedure 18.09 Other incision of external ear 18.09 is a specific code that can be used to specify a procedure 18.09 contains 7 index entries ICD-9-CM Procedure 18.1 Diagnostic procedures on external ear 18.1 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.11 Otoscopy Examination of the EAR CANAL and eardrum with an OTOSCOPE. 18.11 is a specific code that can be used to specify a procedure 18.11 contains 2 index entries ICD-9-CM Procedure 18.12 Biopsy of external ear 18.12 is a specific code that can be used to specify a procedure 18.12 contains 1 index entry ICD-9-CM Procedure 18.19 Other diagnostic procedures on external ear 18.19 is a specific code that can be used to specify a procedure 18.19 contains 1 index entry ICD-9-CM Procedure 18.2 Excision or destruction of lesion of external ear 18.2 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.21 Excision of preauricular sinus 18.21 is a specific code that can be used to specify a procedure 18.21 contains 3 index entries ICD-9-CM Procedure 18.29 Excision or destruction of other lesion of external ear 18.29 is a specific code that can be used to specify a procedure 18.29 contains 14 index entries ICD-9-CM Procedure 18.3 Other excision of external ear 18.3 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.31 Radical excision of lesion of external ear 18.31 is a specific code that can be used to specify a procedure 18.31 contains 5 index entries ICD-9-CM Procedure 18.39 Other 18.39 is a specific code that can be used to specify a procedure 18.39 contains 3 index entries ICD-9-CM Procedure 18.4 Suture of laceration of external ear 18.4 is a specific code that can be used to specify a procedure 18.4 contains 3 index entries ICD-9-CM Procedure 18.5 Surgical correction of prominent ear 18.5 is a specific code that can be used to specify a procedure 18.5 contains 6 index entries ICD-9-CM Procedure 18.6 Reconstruction of external auditory canal 18.6 is a specific code that can be used to specify a procedure 18.6 contains 15 index entries ICD-9-CM Procedure 18.7 Other plastic repair of external ear 18.7 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 18.71 Construction of auricle of ear 18.71 is a specific code that can be used to specify a procedure 18.71 contains 7 index entries ICD-9-CM Procedure 18.72 Reattachment of amputated ear 18.72 is a specific code that can be used to specify a procedure 18.72 contains 2 index entries ICD-9-CM Procedure 18.79 Other plastic repair of external ear 18.79 is a specific code that can be used to specify a procedure 18.79 contains 13 index entries ICD-9-CM Procedure 18.9 Other operations on external ear 18.9 is a specific code that can be used to specify a procedure 18.9 contains 1 index entry