Prostatic intraepithelial neoplasia

This code represents the presence of abnormal, pre-cancerous cells within the prostatic ducts and acini, which have not yet invaded the surrounding tissue. It signifies a spectrum of cellular changes that are considered a precursor to prostate adenocarcinoma. This condition is typically identified through prostate biopsy.

This code is appropriate for documenting a diagnosis of prostatic intraepithelial neoplasia (PIN) when the specific grade (e.g., low-grade or high-grade) is not specified or when it does not meet the criteria for PIN III. It should be used when pathology reports indicate PIN without further classification or explicitly state PIN I or PIN II.

• Do not use this code if the pathology report specifies "prostatic intraepithelial neoplasia III (PIN III)"; instead, refer to the D07.5 code.
• Ensure the documentation clearly states "prostatic intraepithelial neoplasia" or a similar pre-malignant finding in the prostate.
• This code typically serves as a primary diagnosis when the PIN is the reason for the encounter, or as a secondary diagnosis when monitoring or treating other prostate conditions.