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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Carcinoma In Situ 230-234 > ICD-9-CM Diagnosis 231 Carcinoma in situ of respiratory system 231 is a non-specific code that cannot be used to specify a diagnosis ICD-9-CM Diagnosis 231.0 Carcinoma in situ of larynx Stage 0 includes: Tis, N0, M0. Tis: Carcinoma in situ. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th ed.)-2003 231.0 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 231.1 Carcinoma in situ of trachea 231.1 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 231.2 Carcinoma in situ of bronchus and lung 231.2 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 231.8 Carcinoma in situ of other specified parts of respiratory system 231.8 is a specific code that can be used to specify a diagnosis ICD-9-CM Diagnosis 231.9 Carcinoma in situ of respiratory system part unspecified 231.9 is a specific code that can be used to specify a diagnosis