2026 ICD-10-CM Diagnosis Code D40Neoplasm of uncertain behavior of male genital organs

ICD-10-CM Codes›C00–D49›D37-D48›D40

ICD-10-CM D40
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D40 is a non-billable ICD-10-CM category code for neoplasm of uncertain behavior of male genital organs, so it cannot be submitted on claims. Use a more specific code from this category instead, such as D40.0, D40.10, D40.11, and D40.12.

Code Identity

ICD-10-CM Code
D40
Billable Status
No — Non-Billable Category
Code Describes
Neoplasm of uncertain behavior of male genital organs
Chapter
D37-D48
Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes

Code Classification

ChapterC00–D49Neoplasms
SectionD37-D48Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes
CategoryD40Neoplasm of uncertain behavior of male genital organs
This CodeD40Neoplasm of uncertain behavior of male genital organs

Specific Coding for Neoplasm of uncertain behavior of male genital organsOverview

Non-specific codes like D40 require more characters. Use one of these billable codes instead:

  • Use D40.0 for Neoplasm of uncertain behavior of prostate

  • D40.1 for Neoplasm of uncertain behavior of testis

  • Use D40.10 for Neoplasm of uncertain behavior of unspecified testis

  • Use D40.11 for Neoplasm of uncertain behavior of right testis

  • Use D40.12 for Neoplasm of uncertain behavior of left testis

  • Use D40.8 for Neoplasm of uncertain behavior of other specified male genital organs

  • Use D40.9 for Neoplasm of uncertain behavior of male genital organ, unspecified

Patient EducationClinical

Penis Disorders

Problems with the penis can cause pain and affect a man's sexual function and fertility. Penis disorders include:

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 D40Overview

Is D40 (Neoplasm of uncertain behavior of male genital organs) a billable code?

No. This is a category header that groups the codes for neoplasm of uncertain behavior of male genital organs, and headers cannot be submitted on claims. Claims for neoplasm of uncertain behavior of male genital organs need a more specific code from this category, such as D40.0, D40.10, and D40.11.