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ICD-10 Code N40.1: Benign prostatic hyperplasia with lower urinary tract symptoms

N40.1 is a billable ICD-10 diagnosis code used to classify Benign prostatic hyperplasia with lower urinary tract symptoms in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the genitourinary system (N00-N99).

When is it used?

  • May be used when a clinician documents benign prostatic hyperplasia with lower urinary tract symptoms in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
14Diseases of the genitourinary system (N00-N99)
block
N40-N53Diseases of male genital organs
category
N40Benign prostatic hyperplasia
currentN40

Official coding notes

Inclusion terms
  • Enlarged prostate with LUTS
Applicable to
  • 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)
Use 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)

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

UrologistGynecologist

Coverage-related procedures and services

HCPCS C2596high
PROBE, IMAGE-GUIDED, ROBOTIC, WATERJET ABLATION
Source: CMS coverage guidance
CPT 52597high
TRANSURETHRAL ROBOTIC-ASSISTED WATERJET RESECTION OF PROSTATE, INCLUDING INTRAOPERATIVE PLANNING, ULTRASOUND GUIDANCE, CONTROL OF POSTOPERATIVE BLEEDING, COMPLETE, INCLUDING VASECTOMY, MEATOTOMY, CYSTOURETHROSCOPY, URETHRAL CALIBRATION AND/OR DILATION, AND INTERNAL URETHROTOMY, WHEN PERFORMED
Source: CMS coverage guidance
CPT 75726high
ANGIOGRAPHY, VISCERAL, SELECTIVE OR SUPRASELECTIVE (WITH OR WITHOUT FLUSH AORTOGRAM), RADIOLOGICAL SUPERVISION AND INTERPRETATION
Source: CMS coverage guidance
CPT 75625high
AORTOGRAPHY, ABDOMINAL, BY SERIALOGRAPHY, RADIOLOGICAL SUPERVISION AND INTERPRETATION
Source: CMS coverage guidance
CPT 51726high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT);
Source: CMS coverage guidance
CPT 51727high
COMPLEX CYSTOMETROGRAM (IE, CALIBRATED ELECTRONIC EQUIPMENT); WITH URETHRAL PRESSURE PROFILE STUDIES (IE, URETHRAL CLOSURE PRESSURE PROFILE), ANY TECHNIQUE
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Benign prostatic hyperplasia with lower urinary tract symptoms

Frequently asked questions

Code details

CodeN40.1
SystemICD10
Display nameBenign prostatic hyperplasia with lower urinary tract symptoms
ChapterDiseases of the genitourinary system (N00-N99)
BlockDiseases of male genital organs

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Enlargement, enlargedHyperplasia, hyperplastic

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code N40.1 for Benign prostatic hyperplasia with lower urinary tract symptoms | HealthAssure