ICD-10 Diagnosis Code N40.1

Benign prostatic hyperplasia with lower urinary tract symp

Diagnosis Code N40.1

ICD-10: N40.1
Short Description: Benign prostatic hyperplasia with lower urinary tract symp
Long Description: Benign prostatic hyperplasia with lower urinary tract symptoms
This is the 2019 version of the ICD-10-CM diagnosis code N40.1

Valid for Submission
The code N40.1 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Diseases of the genitourinary system (N00–N99)
    • Diseases of male genital organs (N40-N53)
      • Benign prostatic hyperplasia (N40)

Information for Medical Professionals

Code Edits
The following edits are applicable to this code:
Adult diagnoses Additional informationCallout TooltipAdult diagnoses
Adult. Age range is 15–124 years inclusive (e.g., senile delirium, mature cataract).

Diagnoses for males only Additional informationCallout TooltipDiagnoses for males only
Diagnoses for males only.

Diagnostic Related Groups
The diagnosis code N40.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)


Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Benign prostatic hyperplasia
  • Benign prostatic hypertrophy with outflow obstruction
  • Delay when starting to pass urine
  • Desire for urination
  • Difficulty passing urine
  • Finding of bladder emptying
  • Finding of desire for urination
  • Finding of frequency of urination
  • Finding related to ability to pass urine
  • Hyperplasia of prostate
  • Incomplete emptying of bladder
  • Increased frequency of urination
  • Lower urinary tract symptoms
  • Lower urinary tract symptoms due to benign prostatic hypertrophy
  • Must strain to pass urine
  • Nocturia
  • Nocturia due to benign prostatic hypertrophy
  • Obstruction of urethra
  • Obstructive nephropathy due to prostatic hypertrophy
  • Poor stream of urine
  • Prostatic obstruction
  • Sign or symptom of the urinary system
  • Straining on urination due to benign prostatic hypertrophy
  • Strength of stream of urine - finding
  • Urgent desire to urinate
  • Urinary frequency due to benign prostatic hypertrophy
  • Urinary hesitancy due to benign prostatic hypertrophy
  • Urinary incontinence due to benign prostatic hypertrophy
  • Urinary retention due to benign prostatic hypertrophy
  • Urinary urgency due to benign prostatic hypertrophy
  • Weak urinary stream due to benign prostatic hypertrophy

Index of Diseases and Injuries
References found for the code N40.1 in the Index of Diseases and Injuries:

Information for Patients

Enlarged Prostate (BPH)

Also called: benign prostatic hyperplasia

The prostate is a gland in men. It helps make semen, the fluid that contains sperm. The prostate surrounds the tube that carries urine out of the body. As men age, their prostate grows bigger. If it gets too large, it can cause problems. An enlarged prostate is also called benign prostatic hyperplasia (BPH). Most men will get BPH as they get older. Symptoms often start after age 50.

BPH is not cancer, and it does not seem to increase your chance of getting prostate cancer. But the early symptoms are the same. Check with your doctor if you have

  • A frequent and urgent need to urinate, especially at night
  • Trouble starting a urine stream or making more than a dribble
  • A urine stream that is weak, slow, or stops and starts several times
  • The feeling that you still have to go, even just after urinating
  • Small amounts of blood in your urine

Severe BPH can cause serious problems over time, such as urinary tract infections, and bladder or kidney damage. If it is found early, you are less likely to develop these problems.

Tests for BPH include a digital rectal exam, blood and imaging tests, a urine flow study, and examination with a scope called a cystoscope. Treatments include watchful waiting, medicines, nonsurgical procedures, and surgery.

NIH: National Institute of Diabetes and Digestive and Kidney Diseases

  • Digital rectal exam (Medical Encyclopedia)
  • Enlarged prostate (Medical Encyclopedia)
  • Enlarged prostate - after care (Medical Encyclopedia)
  • Prostate removal (Medical Encyclopedia)
  • Prostate resection - minimally invasive (Medical Encyclopedia)
  • Urinary Retention - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)

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