ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesA59.03

A59.03

Trichomonal cystitis and urethritis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 A59.03 is a billable code used to indicate a diagnosis of trichomonal cystitis and urethritis.

Key Diagnostic Point:

Trichomonal cystitis and urethritis is an infection caused by the protozoan parasite Trichomonas vaginalis, primarily affecting the urogenital tract. This sexually transmitted infection (STI) is characterized by inflammation of the bladder (cystitis) and the urethra (urethritis). Symptoms may include dysuria (painful urination), increased urinary frequency, and urethral discharge. In women, it can also lead to vaginitis, while men may experience prostatitis. The infection is often asymptomatic, particularly in men, which complicates diagnosis and increases the risk of transmission. Diagnosis is typically confirmed through laboratory testing, including wet mount microscopy or nucleic acid amplification tests (NAAT). Treatment involves the administration of metronidazole or tinidazole, with both partners needing treatment to prevent reinfection. Contact tracing is crucial to identify and treat sexual partners, thereby reducing the spread of the infection. Proper education on safe sexual practices is essential to prevent future infections.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between symptomatic and asymptomatic cases
  • Need for accurate documentation of sexual history
  • Potential for co-infections with other STIs
  • Variability in symptoms among different populations

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to document laboratory test results
  • Lack of patient education records
  • Improper coding of co-existing conditions

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed patient history, including urinary symptoms and sexual history.

Common Clinical Scenarios

Patients presenting with dysuria, urinary frequency, or urethral discharge.

Billing Considerations

Ensure documentation reflects the presence of cystitis and urethritis to support coding.

Gynecology

Documentation Requirements

Comprehensive history of vaginal symptoms and sexual activity.

Common Clinical Scenarios

Women presenting with vaginitis symptoms alongside urinary complaints.

Billing Considerations

Document any co-existing STIs and treatment plans for both partners.

Coding Guidelines

Inclusion Criteria

Use A59.03 When
  • According to ICD
  • 10 coding guidelines, A59
  • 03 should be used when the diagnosis of trichomonal cystitis and urethritis is confirmed through laboratory testing
  • It is important to document the specific symptoms and any related conditions to support the use of this code

Exclusion Criteria

Do NOT use A59.03 When
No specific exclusions found.

Related CPT Codes

87520CPT Code

Nucleic acid amplification test for Trichomonas vaginalis

Clinical Scenario

Used when confirming diagnosis of trichomonal infection.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Urology and gynecology should ensure proper test selection based on patient symptoms.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of trichomonal infections, improving the accuracy of data collection and treatment tracking. A59.03 provides a clear distinction between different manifestations of trichomoniasis, aiding in better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of trichomonal infections, improving the accuracy of data collection and treatment tracking. A59.03 provides a clear distinction between different manifestations of trichomoniasis, aiding in better patient management.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of trichomonal infections, improving the accuracy of data collection and treatment tracking. A59.03 provides a clear distinction between different manifestations of trichomoniasis, aiding in better patient management.

Resources

Clinical References

  • •
    CDC Trichomoniasis Fact Sheet

Coding & Billing References

  • •
    CDC Trichomoniasis Fact Sheet

Frequently Asked Questions

What are the common symptoms of trichomonal cystitis and urethritis?

Common symptoms include painful urination, increased urinary frequency, and urethral discharge. Women may also experience vaginal discharge and irritation.