Billable / Specific Code
ICD-10-CM N42.31 is the diagnosis code for Prostatic intraepithelial neoplasia. This code falls under the section "Diseases of male genital organs" within Chapter 14 — Diseases of the genitourinary system (N00-N99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as N42.31. They are mutually exclusive:
Understanding where N42.31 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, N42.31 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
N42.31 is the ICD-10-CM diagnosis code for "Prostatic intraepithelial neoplasia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of N42.31 is N42.3 ("Dysplasia of prostate"). N42.31 provides a more specific classification within this category.
N42.31 is located in Section N40-N53 — "Diseases of male genital organs" within Chapter 14 of the ICD-10-CM Tabular List.
Use N42.31 when the patients documented diagnosis matches "Prostatic intraepithelial neoplasia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Prostatic intraepithelial neoplasia is N42.31.
Yes, N42.31 can be used as a primary diagnosis code since it is billable and specific.
N42.31 is in Chapter 14 of the ICD-10-CM Tabular List.
Type 1 Excludes for N42.31 include: prostatic intraepithelial neoplasia III (PIN III) (D07.5).
Yes, N42.31 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.