N42.31 – Prostatic intraepithelial neoplasia
ICD-10-CM 2027 diagnosis code · Diseases of male genital organs
ICD-10-CM code
N42.31
- Code
N42.31(claims format:N4231)- Description
- Prostatic intraepithelial neoplasia
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 14. Diseases of the genitourinary system (N00-N99)
- Block
- N40-N53 Diseases of male genital organs
- Parent codes
- N42 › N42.3
Notes for N42.31
Applicable to:
- PIN
- Prostatic intraepithelial neoplasia I (PIN I)
- Prostatic intraepithelial neoplasia II (PIN II)
Excludes1 (not coded here):
- prostatic intraepithelial neoplasia III (PIN III) (D07.5)
Index terms for N42.31
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in N42.3
Frequently asked questions
What is ICD-10 code N42.31?
N42.31 is the ICD-10-CM code for prostatic intraepithelial neoplasia, in the block N40-N53 (Diseases of male genital organs).
Is N42.31 a billable code?
Yes. N42.31 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does N42.31 belong to?
It belongs to category N42 – Other and unspecified disorders of prostate.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.