N40.3 - Nodular prostate with lower urinary tract symptoms

Version 2023
ICD-10:N40.3
Short Description:Nodular prostate with lower urinary tract symptoms
Long Description:Nodular prostate with lower urinary tract symptoms
Status: Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Diseases of the genitourinary system (N00–N99)
    • Diseases of male genital organs (N40-N53)
      • Benign prostatic hyperplasia (N40)

N40.3 is a billable ICD-10 code used to specify a medical diagnosis of nodular prostate with lower urinary tract symptoms. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.

The code N40.3 is applicable to adult patients aged 15 through 124 years inclusive. It is clinically and virtually impossible to use this code on a patient outside the stated age range.

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to this diagnosis code:


Use Additional Code

Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

Index to Diseases and Injuries References

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

Convert to ICD-9 Code

Source ICD-10 CodeTarget ICD-9 Code
N40.3600.11 - Nod prostate w ur obst
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education


Enlarged Prostate (BPH)

What is the prostate?

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

What is an enlarged prostate (BPH)?

An enlarged prostate is when your prostate gland becomes larger than normal. It's also called benign prostatic hyperplasia or BPH for short. Benign means not cancer. And hyperplasia means too much cell growth. BPH isn't cancer and it doesn't increase your risk of getting prostate cancer.

Usually, the prostate gland continues to grow during adult life. That's why BPH is the most common prostate condition in people over age 50. As the prostate gets bigger, it may press against the bladder and pinch the urethra. This can slow or block the flow of urine out of your bladder.

Over time, the bladder muscle may become weak from trying to pass urine through a narrow urethra. When this happens, your bladder may not empty completely when you urinate. A narrowed urethra and weak bladder cause many of the urinary problems you may have with BPH.

What causes an enlarged prostate (BPH)?

Researchers aren't sure why the prostate keeps growing. Some researchers think changes in hormones with aging may cause the prostate to get bigger.

Who is more likely to develop BPH?

You're more likely to develop BPH if you:

What are the symptoms of BPH?

Symptoms of BPH include:

It's important to see your health care provider if you have any of these symptoms because they could be from a more serious health problem.

You should get medical help right away if you:

What other problems can BPH cause?

For most people, BPH doesn't cause other problems. But BPH increases your chance of developing serious conditions, including:

How is BPH diagnosed?

To find out if you have BPH, your provider will:

What are the treatments for BPH?

Not everyone needs treatment for BPH. Treatment options depend on how much your symptoms bother you, your health, age, and the size of your prostate:

Your provider can explain the possible benefits and side effects of your treatment options so you can decide what's best for you.

Can BPH be prevented?

Researchers haven't found ways to prevent BPH. You can take care of your prostate health by:

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


[Learn More in MedlinePlus]

Prostate Enlargement (Benign Prostatic Hyperplasia)

Provides basic information about the prostate gland and prostate enlargement. Describes symptoms, diagnosis, and treatment.
[Learn More in MedlinePlus]

Code History