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ICD-10 Guide
ICD-10 CodesA56.02

A56.02

Chlamydial vulvovaginitis

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

Code Description

ICD-10 A56.02 is a billable code used to indicate a diagnosis of chlamydial vulvovaginitis.

Key Diagnostic Point:

Chlamydial vulvovaginitis is an infection of the vulva and vagina caused by the bacterium Chlamydia trachomatis, a common sexually transmitted infection (STI). This condition often presents with symptoms such as vaginal discharge, itching, burning sensations, and discomfort during intercourse. In many cases, chlamydial infections can be asymptomatic, particularly in women, which can lead to delayed diagnosis and treatment. The infection can also ascend to the upper reproductive tract, potentially causing pelvic inflammatory disease (PID) if left untreated. Diagnosis is typically confirmed through nucleic acid amplification tests (NAATs) or other laboratory methods. Treatment usually involves a course of antibiotics, such as azithromycin or doxycycline, and it is crucial to treat sexual partners to prevent reinfection. Regular screening for STIs is recommended for sexually active individuals, particularly those under 25 years of age or with multiple partners, to facilitate early detection and management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in symptoms and presentation among patients
  • Need for accurate laboratory confirmation of diagnosis
  • Potential for co-infections with other STIs
  • Documentation of sexual history and partner treatment

Audit Risk Factors

  • Inadequate documentation of symptoms and treatment
  • Failure to document partner notification and treatment
  • Misdiagnosis or coding of related conditions
  • Lack of follow-up documentation

Specialty Focus

Medical Specialties

Gynecology

Documentation Requirements

Detailed patient history, including sexual history, symptoms, and treatment plans.

Common Clinical Scenarios

Patients presenting with vaginal discharge, pelvic pain, or abnormal bleeding.

Billing Considerations

Ensure documentation reflects the need for partner treatment and follow-up care.

Infectious Disease

Documentation Requirements

Comprehensive lab results, treatment regimens, and follow-up plans.

Common Clinical Scenarios

Patients with recurrent STIs or those with complex medical histories.

Billing Considerations

Focus on co-infections and comprehensive treatment strategies.

Coding Guidelines

Inclusion Criteria

Use A56.02 When
  • According to the ICD
  • CM coding guidelines, A56
  • 02 should be used when the diagnosis is confirmed through appropriate testing
  • It is important to document the presence of symptoms and any relevant sexual history

Exclusion Criteria

Do NOT use A56.02 When
  • Exclusion criteria include other specific infections or conditions affecting the vulva and vagina

Related CPT Codes

87491CPT Code

Chlamydia trachomatis test

Clinical Scenario

Used when testing for chlamydia in symptomatic patients.

Documentation Requirements

Document the reason for testing and any symptoms present.

Specialty Considerations

Ensure proper coding for the test based on the patient's clinical presentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chlamydial infections, improving the accuracy of data collection and treatment tracking. A56.02 provides a clear distinction from other STIs, facilitating better patient management and public health reporting.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chlamydial infections, improving the accuracy of data collection and treatment tracking. A56.02 provides a clear distinction from other STIs, facilitating better patient management and public health reporting.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of chlamydial infections, improving the accuracy of data collection and treatment tracking. A56.02 provides a clear distinction from other STIs, facilitating better patient management and public health reporting.

Resources

Clinical References

  • •
    CDC Chlamydia Fact Sheet

Coding & Billing References

  • •
    CDC Chlamydia Fact Sheet

Frequently Asked Questions

What are the common symptoms of chlamydial vulvovaginitis?

Common symptoms include vaginal discharge, itching, burning sensations, and discomfort during intercourse. However, many individuals may be asymptomatic.