2026 ICD-10-CM Diagnosis Code N42Other and unspecified disorders of prostate

ICD-10-CM Codes›N00–N99›N40-N53›N42

ICD-10-CM N42
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

N42 is a non-billable ICD-10-CM category code for other and unspecified disorders of prostate, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N42.0, N42.1, N42.30, and N42.31.

Code Identity

ICD-10-CM Code
N42
Billable Status
No — Non-Billable Category
Code Describes
Other and unspecified disorders of prostate
Short Description
Other and unspecified disorders of prostate
Same as the full description in the CMS dataset.
Chapter
N40-N53
Diseases of male genital organs

Code Classification

ChapterN00–N99Diseases of the genitourinary system
SectionN40-N53Diseases of male genital organs
CategoryN42Other and unspecified disorders of prostate
This CodeN42Other and unspecified disorders of prostate

Specific Coding for Other and unspecified disorders of prostateOverview

Non-specific codes like N42 require more characters. Use one of these billable codes instead:

  • Use N42.0 for Calculus of prostate

  • Use N42.1 for Congestion and hemorrhage of prostate

  • N42.3 for Dysplasia of prostate

  • Use N42.30 for Unspecified dysplasia of prostate

  • Use N42.31 for Prostatic intraepithelial neoplasia

  • Use N42.32 for Atypical small acinar proliferation of prostate

  • Use N42.39 for Other dysplasia of prostate

  • N42.8 for Other specified disorders of prostate

  • Use N42.81 for Prostatodynia syndrome

  • Use N42.82 for Prostatosis syndrome

  • Use N42.83 for Cyst of prostate

  • Use N42.89 for Other specified disorders of prostate

  • Use N42.9 for Disorder of prostate, unspecified

Patient EducationClinical

Prostate Diseases

The prostate is a gland in the male reproductive system. It lies just below the bladder. It makes fluid that is part of semen.

The full article covers:

  • What is the prostate?
  • What are prostate diseases?
  • Who is more likely to develop prostate diseases?
  • What are the symptoms of prostate diseases?
  • How are prostate diseases diagnosed?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About N42Overview

Is N42 (Other and unspecified disorders of prostate) a billable code?

No. This is a category header that groups the codes for other and unspecified disorders of prostate, and headers cannot be submitted on claims. Claims for other and unspecified disorders of prostate need a more specific code from this category, such as N42.0, N42.1, and N42.30.