2024 ICD-10-CM Diagnosis Code N40.3

Nodular prostate with lower urinary tract symptoms

ICD-10-CM Code:
ICD-10 Code for:
Nodular prostate with lower urinary tract symptoms
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Diseases of the genitourinary system
    • Diseases of male genital organs
      • Benign prostatic hyperplasia

N40.3 is a billable diagnosis code used to specify a medical diagnosis of nodular prostate with lower urinary tract symptoms. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

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:

  • Urinary obstruction due to nodular prostate

Clinical Classification

Tabular List of Diseases and Injuries

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

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.
  • code for associated symptoms, when specified:
  • incomplete bladder emptying R39.14
  • nocturia R35.1
  • straining on urination R39.16
  • urinary frequency R35.0
  • urinary hesitancy R39.11
  • urinary incontinence N39.4
  • urinary obstruction N13.8
  • urinary retention R33.8
  • urinary urgency R39.15
  • weak urinary stream R39.12

Index to Diseases and Injuries References

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

Code Edits

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

  • Adult diagnoses - The Medicare Code Editor detects inconsistencies in adult cases by checking a patient's age and any diagnosis on the patient's record. The adult code edits apply to patients age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).
  • Diagnoses for males only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to MALES only .

Convert N40.3 to ICD-9-CM

  • ICD-9-CM Code: 600.11 - 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:

  • Are age 40 or older. The chance of getting BPH increases as you get older.
  • Have family members who have had BPH.
  • Have certain health conditions such as:
    • Obesity.
    • Heart disease and problems with blood circulation.
    • Type 2 diabetes.
    • Erectile dysfunction.
  • Don't get enough physical activity.

What are the symptoms of BPH?

Symptoms of BPH include:

  • Having a frequent or urgent need to urinate
  • Waking up many times to urinate
  • Having problems with urine flow, such as:
    • Trouble starting to urinate
    • A stream that's weak, slow, or stops and starts
    • Dribbling after urination
    • Urinary incontinence
    • Feeling that you can't completely empty your bladder
  • Pain after ejaculation or during urination
  • Urine with an unusual color or smell

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:

  • Can't urinate at all
  • Have fever and chills with urination that's painful, frequent, and urgent
  • Have blood in your urine
  • Have pain in your lower abdomen (belly) and urinary tract

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:

  • Acute urinary retention. With this condition, you suddenly can't urinate at all. This a medical emergency. Acute urinary retention is common in older males and the chance of having it increases with age. It may be triggered by:
    • Taking certain over-the-counter cold or allergy medicines
    • Drinking alcohol
    • Cold temperatures
    • Not moving enough over a long period of time
  • Urinary tract infections (UTIs)
  • Bladder damage and bladder stones
  • Kidney damage

How is BPH diagnosed?

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

  • Ask about your medical history. Be sure to tell your provider about all the medicines you take, because certain medicines can make BPH symptoms worse.
  • Ask about your family health history.
  • Examine you. The exam may include a digital rectal exam (DRE) of your prostate. In a DRE, your provider inserts a gloved finger into your rectum to check if your prostate is large, tender, or irregular in any other way.
  • Order medical tests, if needed, such as:
    • Urine tests.
    • A PSA blood test (prostate-specific antigen test).
    • Urodynamic testing to see how well you can hold and release urine.
    • Cystoscopy to look inside your urethra and bladder.
    • Ultrasound pictures of your prostate and urinary tract.
    • A prostate biopsy to diagnose or rule out prostate cancer.

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:

  • Lifestyle changes may improve mild symptoms. They include:

    • Drinking less before bedtime or going out
    • Avoiding or cutting back on beverages with caffeine and alcohol
    • Bladder training and exercising the muscles that control urine flow
    • Preventing or treating constipation

  • Medicines can help mild to moderate symptoms by:

    • Stopping the prostate from growing
    • Shrinking the prostate
    • Relaxing muscles to improve urine flow

    Sometimes combining 2 types of medicine helps more than taking just one type of medicine.

  • Medical procedures can help improve moderate to severe BPH symptoms when medicines don't help enough. There are several different types of procedures. They all use an instrument inserted into the urethra to either:

    • Widen the urethra
    • Destroy part of the prostate with heat

  • Surgery may be helpful when symptoms are severe, other treatments haven't helped, or you have another problem, such as bladder damage. Different types of surgery are used to:

    • Remove part or all of the prostate
    • Make cuts in the prostate to take pressure off the urethra

    Most BPH surgery is done with tools inserted into the urethra.

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:

  • Talking with your provider about your risk for developing an enlarged prostate
  • Getting regular checkups
  • Paying attention to your symptoms so you can get treatment early if you see signs of BPH

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

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.