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v1.0.0
ICD-10 Guide
ICD-10 CodesN35.1

N35.1

Billable

Postinfective urethral stricture, not elsewhere classified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N35.1 is a billable code used to indicate a diagnosis of postinfective urethral stricture, not elsewhere classified.

Key Diagnostic Point:

Postinfective urethral stricture refers to a narrowing of the urethra that occurs as a result of a previous infection, typically urethritis. This condition can arise from various infectious agents, including sexually transmitted infections (STIs) such as gonorrhea or chlamydia, as well as non-STI-related infections. The inflammation and scarring that result from these infections can lead to a significant reduction in the urethral lumen, causing obstructive symptoms such as dysuria, urinary frequency, urgency, and in severe cases, urinary retention. Diagnosis is often confirmed through imaging studies, such as retrograde urethrograms, or cystoscopy, which allows direct visualization of the urethra. Treatment options may include urethral dilation, urethrotomy, or surgical reconstruction, depending on the severity and location of the stricture. Accurate coding of this condition is essential for appropriate management and reimbursement, as it falls under the broader category of urinary system disorders.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between postinfective and other types of urethral strictures.
  • Need for detailed documentation of the infection history.
  • Variability in clinical presentation and severity of symptoms.
  • Potential overlap with other urinary system disorders.

Audit Risk Factors

  • Inadequate documentation of the infection history.
  • Failure to specify the type of infection leading to the stricture.
  • Lack of imaging or procedural reports to support the diagnosis.
  • Misclassification of the stricture type.

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Comprehensive history of urinary symptoms, details of previous infections, and results from imaging studies.

Common Clinical Scenarios

Patients presenting with obstructive urinary symptoms following a history of urethritis.

Billing Considerations

Ensure that all relevant diagnostic tests and treatments are documented to support the coding.

Infectious Disease

Documentation Requirements

Detailed history of infections, treatment regimens, and follow-up care.

Common Clinical Scenarios

Patients with recurrent urinary tract infections leading to urethral complications.

Billing Considerations

Document the relationship between the infection and subsequent urinary complications.

Coding Guidelines

Inclusion Criteria

Use N35.1 When
  • According to ICD
  • 10 coding guidelines, N35
  • 1 should be used when the urethral stricture is specifically due to a postinfective process and not classified elsewhere
  • Coders must ensure that the underlying infection is documented and that the stricture is not due to other causes such as trauma or congenital anomalies

Exclusion Criteria

Do NOT use N35.1 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

52310CPT Code

Cystoscopy, diagnostic

Clinical Scenario

Used to evaluate the urethra in patients with suspected strictures.

Documentation Requirements

Document indications for the procedure and findings.

Specialty Considerations

Urologists should ensure that all findings are clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like postinfective urethral stricture, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like postinfective urethral stricture, improving the accuracy of diagnoses and treatment tracking. This specificity aids in better patient management and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What is the primary cause of postinfective urethral stricture?

The primary cause is inflammation and scarring resulting from a previous infection, often due to STIs like gonorrhea or chlamydia.

How is postinfective urethral stricture diagnosed?

Diagnosis is typically made through imaging studies such as retrograde urethrograms or cystoscopy, which visualize the urethra.

What are the treatment options for this condition?

Treatment options include urethral dilation, urethrotomy, or surgical reconstruction, depending on the severity of the stricture.