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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 Breast And Genitourinary System 233.* > 2007 ICD-9-CM Diagnosis 233.4 Carcinoma in situ of prostate This code may be outdated. View the most recent version of ICD-9-CM 233.4 This is a clonal growth of partially transformed cells resulting in morphologically identifiable premalignant lesions. These are further subdivided into low and high-grade lesions. The alterations include loss of glandular formation with the development of more anaplastic morphology, nuclear pleomorphism, invasion of the basement membrane, an increase in cell motility, loss of contact inhibition, and angiogenesis. 233.4 is a specific code that can be used to specify a diagnosis 233.4 contains 2 index entries View the ICD-9-CM Volume 1 233.* hierarchy Index entries containing 233.4: Dysplasia - see also Anomaly prostate 602.3 intraepithelial neoplasia III [PIN III] 233.4 PIN III (prostatic intraepithelial neoplasia III) 233.4