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 230.6 Carcinoma in situ of anus unspecified View the most recent version of ICD-9-CM 230.6 Stage 0 anal cancer corresponds to the following TNM grouping: Tis, N0, M0. Tis: Carcinoma in situ. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th Ed.) - 2003 230.6 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 230.* hierarchy 230.6 Excludes anus: margin (232.5) skin (232.5) perianal skin (232.5)