ICD-9-CM Procedure 31 Other operations on larynx and trachea 31 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.0 Injection of larynx 31.0 is a specific code that can be used to specify a procedure 31.0 contains 6 index entries ICD-9-CM Procedure 31.1 Temporary tracheostomy 31.1 is a specific code that can be used to specify a procedure 31.1 contains 17 index entries ICD-9-CM Procedure 31.2 Permanent tracheostomy 31.2 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.21 Mediastinal tracheostomy 31.21 is a specific code that can be used to specify a procedure 31.21 contains 1 index entry ICD-9-CM Procedure 31.29 Other permanent tracheostomy 31.29 is a specific code that can be used to specify a procedure 31.29 contains 8 index entries ICD-9-CM Procedure 31.3 Other incision of larynx or trachea 31.3 is a specific code that can be used to specify a procedure 31.3 contains 11 index entries ICD-9-CM Procedure 31.4 Diagnostic procedures on larynx and trachea 31.4 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.41 Tracheoscopy through artificial stoma 31.41 is a specific code that can be used to specify a procedure 31.41 contains 3 index entries ICD-9-CM Procedure 31.42 Laryngoscopy and other tracheoscopy 31.42 is a specific code that can be used to specify a procedure 31.42 contains 6 index entries ICD-9-CM Procedure 31.43 Closed [endoscopic] biopsy of larynx 31.43 is a specific code that can be used to specify a procedure 31.43 contains 3 index entries ICD-9-CM Procedure 31.44 Closed [endoscopic] biopsy of trachea 31.44 is a specific code that can be used to specify a procedure 31.44 contains 3 index entries ICD-9-CM Procedure 31.45 Open biopsy of larynx or trachea 31.45 is a specific code that can be used to specify a procedure 31.45 contains 2 index entries ICD-9-CM Procedure 31.48 Other diagnostic procedures on larynx 31.48 is a specific code that can be used to specify a procedure 31.48 contains 1 index entry ICD-9-CM Procedure 31.49 Other diagnostic procedures on trachea 31.49 is a specific code that can be used to specify a procedure 31.49 contains 1 index entry ICD-9-CM Procedure 31.5 Local excision or destruction of lesion or tissue of trachea 31.5 is a specific code that can be used to specify a procedure 31.5 contains 2 index entries ICD-9-CM Procedure 31.6 Repair of larynx 31.6 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.61 Suture of laceration of larynx 31.61 is a specific code that can be used to specify a procedure 31.61 contains 3 index entries ICD-9-CM Procedure 31.62 Closure of fistula of larynx 31.62 is a specific code that can be used to specify a procedure 31.62 contains 10 index entries ICD-9-CM Procedure 31.63 Revision of laryngostomy 31.63 is a specific code that can be used to specify a procedure 31.63 contains 4 index entries ICD-9-CM Procedure 31.64 Repair of laryngeal fracture 31.64 is a specific code that can be used to specify a procedure 31.64 contains 3 index entries ICD-9-CM Procedure 31.69 Other repair of larynx 31.69 is a specific code that can be used to specify a procedure 31.69 contains 12 index entries ICD-9-CM Procedure 31.7 Repair and plastic operations on trachea 31.7 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.71 Suture of laceration of trachea 31.71 is a specific code that can be used to specify a procedure 31.71 contains 3 index entries ICD-9-CM Procedure 31.72 Closure of external fistula of trachea 31.72 is a specific code that can be used to specify a procedure 31.72 contains 5 index entries ICD-9-CM Procedure 31.73 Closure of other fistula of trachea 31.73 is a specific code that can be used to specify a procedure 31.73 contains 5 index entries ICD-9-CM Procedure 31.74 Revision of tracheostomy 31.74 is a specific code that can be used to specify a procedure 31.74 contains 4 index entries ICD-9-CM Procedure 31.75 Reconstruction of trachea and cal collapse of lung 31.75 is a specific code that can be used to specify a procedure 31.75 contains 9 index entries ICD-9-CM Procedure 31.79 Other repair and plastic operation on trachea 31.79 is a specific code that can be used to specify a procedure 31.79 contains 3 index entries ICD-9-CM Procedure 31.9 Other operations on larynx and trachea 31.9 is a non-specific code that should not be used to specify a procedure ICD-9-CM Procedure 31.91 Division of laryngeal nerve 31.91 is a specific code that can be used to specify a procedure 31.91 contains 3 index entries ICD-9-CM Procedure 31.92 Lysis of adhesions of trachea or larynx 31.92 is a specific code that can be used to specify a procedure 31.92 contains 3 index entries ICD-9-CM Procedure 31.93 Replacement of laryngeal or tracheal stent 31.93 is a specific code that can be used to specify a procedure 31.93 contains 4 index entries ICD-9-CM Procedure 31.94 Injection of locally-acting therapeutic substance into trachea 31.94 is a specific code that can be used to specify a procedure 31.94 contains 1 index entry ICD-9-CM Procedure 31.95 Tracheoesophageal fistulization 31.95 is a specific code that can be used to specify a procedure 31.95 contains 4 index entries ICD-9-CM Procedure 31.98 Other operations on larynx 31.98 is a specific code that can be used to specify a procedure 31.98 contains 8 index entries ICD-9-CM Procedure 31.99 Other operations on trachea 31.99 is a specific code that can be used to specify a procedure 31.99 contains 5 index entries