Types of Prostate Histologies

95% of prostate cancer is Adenocarcinoma.

The most common histology codes for prostate are
ICD-O-3 Code ICD-O-3.2 Description Notes
8140/3
  • Adenocarcinoma
    • Acinar adenocarcinoma
 For prostate, if the diagnosis is Acinar Adenocarcinoma, assign 8140/3 for Adenocarcinoma, NOS, NOT 8550/3 (Acinar Adenocarcinoma)
8574/3
  • Adenocarcinoma with neuroendocrine differentiation
  
8046/3
  • Small cell carcinoma
  

For more information on prostate histologies, see the Solid Tumor Rules, Other Rules section: https://seer.cancer.gov/tools/solidtumor/.

Updated: June 15, 2026

Suggested Citation

SEER Training Modules: Types of Prostate Histologies. U.S. National Institutes of Health, National Cancer Institute. Cited 17 June 2026. Available from: https://training.seer.cancer.gov.