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2007 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Carcinoma In Situ 230-234 > Carcinoma In Situ Of Skin 232.* > 2007 ICD-9-CM Diagnosis 232.4 Carcinoma in situ of scalp and skin of neck  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 Therefore, this code may be out of date.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 232.4 can be accessed here. 232.4 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 232.* hierarchy