Carcinoma in situ of prostate

📋Clinical Description

This code represents a non-invasive malignant epithelial neoplasm of the prostate gland, confined entirely to the glandular basement membrane. It signifies the earliest stage of prostate cancer, where abnormal cells are present but have not spread beyond the original site.

🎯When to Use

Assign this code when pathology reports confirm carcinoma in situ of the prostate. This diagnosis is typically made following a prostate biopsy. Ensure the documentation explicitly states "carcinoma in situ" and not a higher stage of malignancy.

💡Coding Tips

Do not code with N42.3- (dysplasia or prostatic intraepithelial neoplasia II [PIN II]) as per Excludes1 note.
Confirm the pathology report specifies "carcinoma in situ" to differentiate from invasive adenocarcinoma.
This code indicates a localized, non-invasive condition, distinct from more advanced prostate cancers.

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Clinical Notes

Inclusion Terms

Prostatic intraepithelial neoplasia III (PIN III)
Severe dysplasia of prostate

Excludes 1 — Not coded here

dysplasia (mild) (moderate) of prostate (N42.3-)
prostatic intraepithelial neoplasia II [PIN II] (N42.3-)

Code Hierarchy

▲D07Carcinoma in situ of other and unspecified genital organs

D07.5(current)

Crosswalks

233.4ExactICD-9 233.4ExactICD-9

Same Category

D07Carcinoma in situ of other and unspecified genital organs D07.0Carcinoma in situ of endometrium D07.1Carcinoma in situ of vulva D07.2Carcinoma in situ of vagina