2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Carcinoma In Situ 230-234 > Carcinoma In Situ Of Respiratory System 231.* > 2006 ICD-9-CM Diagnosis 231.2 Carcinoma in situ of bronchus and lung View the most recent version of ICD-9-CM 231.2 231.2 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 231.* hierarchy Alternate Terminology Carina Hilus of lung