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2008 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 View the full ICD-9-CM Volume 3 31.* hierarchy 31.42 excludes: that with biopsy (31.43-31.44) Index entries containing 31.42: Endoscopy larynx 31.42 through stoma (artificial) 31.41 trachea NEC 31.42 through stoma (artificial) 31.41 Exploration -- see also Incision larynx (by incision) 31.3 endoscopic 31.42 Laryngoscopy (suspension) (through artificial stoma) 31.42 Laryngotracheoscopy 31.42 Tracheoscopy NEC 31.42 through tracheotomy (stoma) 31.41