2026 ICD-10-CM Diagnosis Code N40Benign prostatic hyperplasia
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
Code Classification
Specific Coding for Benign prostatic hyperplasiaOverview
Non-specific codes like N40 require more characters. Use one of these billable codes instead:
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Includes
- adenofibromatous hypertrophy of prostate
- benign hypertrophy of the prostate
- benign prostatic hypertrophy
- BPH
- enlarged prostate
- nodular prostate
- polyp of prostate
Type 1 Excludes
- benign neoplasms of prostate adenoma, benign fibroadenoma fibroma myoma D29.1
Type 2 Excludes
- malignant neoplasm of prostate C61
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
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
Questions About N40Overview
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.
