2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Carcinoma In Situ 230-234 > Carcinoma In Situ Of Digestive Organs 230.* > 2006 ICD-9-CM Diagnosis 230.4 Carcinoma in situ of rectum View the most recent version of ICD-9-CM 230.4 Stage 0 includes: (Tis, N0, M0). Tis: Carcinoma in situ: intraepithelial or invasion of the lamina propria. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th ed.)-2003 230.4 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 230.* hierarchy Alternate Terminology Rectosigmoid junction