2027 ICD-10-CM Diagnosis Code N40Benign prostatic hyperplasia

ICD-10-CM Codes›N00–N99›N40-N53›N40

ICD-10-CM N40
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

N40 is a non-billable ICD-10-CM category code for benign prostatic hyperplasia, so it cannot be submitted on claims. Use a more specific code from this category instead, such as N40.0, N40.1, N40.2, and N40.3.

Code Identity

ICD-10-CM Code
N40
Billable Status
No — Non-Billable Category
Code Describes
Benign prostatic hyperplasia
Short Description
Benign prostatic hyperplasia
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
CategoryN40Benign prostatic hyperplasia
This CodeN40Benign prostatic hyperplasia

Specific Coding for Benign prostatic hyperplasiaOverview

Non-specific codes like N40 require more characters. Use one of these billable codes instead:

  • Use N40.0 for Benign prostatic hyperplasia without lower urinary tract symptoms

  • Use N40.1 for Benign prostatic hyperplasia with lower urinary tract symptoms

  • Use N40.2 for Nodular prostate without lower urinary tract symptoms

  • Use N40.3 for Nodular prostate with lower urinary tract symptoms

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to N40: its own notes plus those printed at Chapter 14. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

  • adenofibromatous hypertrophy of prostate
  • benign hypertrophy of the prostate
  • benign prostatic hypertrophy
  • BPH
  • enlarged prostate
  • nodular prostate
  • polyp of prostate

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

  • benign neoplasms of prostate (adenoma, benign) (fibroadenoma) (fibroma) (myoma) (D29.1)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On N40 itself
  • malignant neoplasm of prostate (C61)
From Chapter 14 (N00-N99) Diseases of the genitourinary system applies to 838 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name N40, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming N40: they are not reported together with it, unless the two conditions are unrelated.

  • D29.1 Benign neoplasm of prostate
    enlarged prostate (N40.-)
  • N42.1 Congestion and hemorrhage of prostate
    enlarged prostate (N40.-)
  • N42.1 Congestion and hemorrhage of prostate
    hyperplasia of prostate (N40.-)

Clinical InformationClinical

  • Benign Prostatic Hyperplasia

    a non-cancerous nodular enlargement of the prostate gland. it is characterized by the presence of epithelial cell nodules, and stromal nodules containing fibrous and smooth muscle elements. it is the most common urologic disorder in men, causing blockage of urine flow.

Patient EducationClinical

Enlarged Prostate (BPH)

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 is an enlarged prostate (BPH)?
  • What causes an enlarged prostate (BPH)?
  • Who is more likely to develop BPH?
  • What are the symptoms of BPH?
  • What other problems can BPH cause?
  • How is BPH diagnosed?
  • What are the treatments for BPH?

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About N40Overview

What is the ICD-10 code for benign prostatic hyperplasia?

N40 is the ICD-10-CM category for benign prostatic hyperplasia, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is N40 (Benign prostatic hyperplasia) a billable code?

No. This is a category header that groups the codes for benign prostatic hyperplasia, and headers cannot be submitted on claims. Claims for benign prostatic hyperplasia need a more specific code from this category, such as N40.0, N40.1, and N40.2.

Can N40 be reported with D29.1?

Not as a rule. The Excludes1 note on N40 lists "benign neoplasms of prostate (adenoma, benign) (fibroadenoma) (fibroma) (myoma) (D29.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).