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ICD-10 Coding for Enlargement of Prostate(N40.0, N40.1)

Complete ICD-10-CM coding and documentation guide for Enlargement of Prostate. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Benign Prostatic HyperplasiaBPHProstate Enlargement

Related ICD-10 Code Ranges

Complete code families applicable to Enlargement of Prostate

N40-N51Primary Range

Diseases of male genital organs

This range includes codes for conditions affecting the male genital organs, including benign prostatic hyperplasia.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
N40.0Enlarged prostate without lower urinary tract symptoms (LUTS)Use when BPH is confirmed via imaging or urodynamics without LUTS.
  • Prostate volume >30 mL on TRUS
  • IPSS ≤7
  • Normal uroflowmetry (Qmax >15 mL/s)
N40.1Enlarged prostate with lower urinary tract symptoms (LUTS)Use when BPH is present with documented LUTS.
  • IPSS ≥8
  • Qmax <10 mL/s
  • Post-void residual >100 mL

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for prostate enlargement

Essential facts and insights about Enlargement of Prostate

The ICD-10 code for prostate enlargement without symptoms is N40.0, while N40.1 is used for prostate enlargement with lower urinary tract symptoms.

Primary ICD-10-CM Codes for enlargement of prostate

Enlarged prostate without lower urinary tract symptoms (LUTS)
Billable Code

Decision Criteria

clinical Criteria

  • Prostate enlargement confirmed without LUTS.

Applicable To

  • Asymptomatic BPH

Excludes

  • Prostate cancer (C61)

Clinical Validation Requirements

  • Prostate volume >30 mL on TRUS
  • IPSS ≤7
  • Normal uroflowmetry (Qmax >15 mL/s)

Code-Specific Risks

  • Misclassification if LUTS are present but not documented.

Coding Notes

  • Ensure no LUTS are documented before using this code.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Urinary frequency

R35.0
Use to specify urinary frequency symptoms with N40.1.

Other retention of urine

R33.8
Use to specify urinary retention symptoms with N40.1.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Malignant neoplasm of prostate

C61
Elevated PSA >10 ng/mL and PI-RADS 4/5 lesion on MRI.

Inflammatory diseases of prostate

N41.x
Presence of fever and positive urine culture.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Enlargement of Prostate to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code N40.0.

Impact

Clinical: Incomplete clinical picture., Regulatory: Potential audit issues., Financial: Denied claims due to insufficient documentation.

Mitigation Strategy

Always pair N40.1 with specific LUTS codes., Review documentation for completeness.

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Confirm LUTS via IPSS/uroflowmetry before assigning N40.1.

Impact

Using unspecified codes like N40 instead of specific codes.

Mitigation Strategy

Ensure documentation supports specific code selection.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Enlargement of Prostate, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Enlargement of Prostate

Use these documentation templates to ensure complete and accurate documentation for Enlargement of Prostate. These templates include all required elements for proper coding and billing.

BPH with LUTS

Specialty: Urology

Required Elements

  • Patient history
  • Symptom documentation
  • Test results
  • Assessment

Example Documentation

72M reports 6-month history of nocturia 4x/night, weak stream, and sensation of incomplete emptying. IPSS score: 20/35 (severe).

Examples: Poor vs. Good Documentation

Poor Documentation Example
Enlarged prostate, treat with tamsulosin.
Good Documentation Example
Digital rectal exam reveals symmetrically enlarged prostate (~40g). IPSS score 22 (severe), uroflowmetry shows Qmax 7 mL/s with intermittent flow. Diagnosed as BPH with LUTS.
Explanation
The good example provides specific symptom details and test results, supporting the diagnosis and coding.

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