2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Benign Neoplasms 210-229 > Benign Neoplasm Of Respiratory And Intrathoracic Organs 212.* > 2008 ICD-9-CM Diagnosis 212.1 Benign neoplasm of larynx  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 212.1 can be accessed here. 212.1 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 212.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. 212.1 also known as: Cartilage: arytenoid cricoid cuneiform thyroid Epiglottis (suprahyoid portion) NOS Glottis Vocal cords (false) (true) 212.1 excludes: epiglottis, anterior aspect (210.6) polyp of vocal cord or larynx (478.4)