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 CodesA56.09

A56.09

Other chlamydial infection of lower genitourinary tract

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

Code Description

ICD-10 A56.09 is a billable code used to indicate a diagnosis of other chlamydial infection of lower genitourinary tract.

Key Diagnostic Point:

Chlamydia infections are among the most common sexually transmitted infections (STIs) worldwide, primarily caused by the bacterium Chlamydia trachomatis. The lower genitourinary tract includes the urethra and cervix, where infections can lead to urethritis in men and cervicitis in women. Symptoms may include abnormal discharge, dysuria, and pelvic pain, although many individuals remain asymptomatic. The diagnosis is typically confirmed through nucleic acid amplification tests (NAATs) or culture methods. Treatment usually involves antibiotics such as azithromycin or doxycycline. It is crucial to screen sexually active individuals, especially those under 25, and to conduct contact tracing to prevent further transmission. This code is used when the infection does not fall under more specific categories of chlamydial infections, indicating a need for careful clinical assessment and documentation to ensure accurate coding.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for accurate laboratory confirmation
  • Differentiation from other STIs
  • Documentation of sexual history and risk factors

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to document laboratory confirmation
  • Lack of detailed sexual history
  • Inconsistent coding practices among providers

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, laboratory results, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of STIs, including chlamydia.

Billing Considerations

Consideration of co-infections and patient follow-up.

Gynecology

Documentation Requirements

Documentation of pelvic exams, symptoms, and treatment regimens.

Common Clinical Scenarios

Routine screening and treatment of chlamydia in sexually active women.

Billing Considerations

Importance of discussing sexual health and partner notification.

Coding Guidelines

Inclusion Criteria

Use A56.09 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code is used only when the infection is confirmed and does not fit into more specific categories
  • Document all relevant clinical findings and laboratory results

Exclusion Criteria

Do NOT use A56.09 When
No specific exclusions found.

Related CPT Codes

87491CPT Code

Chlamydia trachomatis, amplified probe technique

Clinical Scenario

Used for laboratory confirmation of chlamydia infection.

Documentation Requirements

Document the reason for testing and patient consent.

Specialty Considerations

Infectious disease specialists should ensure comprehensive STI screening.

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 data accuracy and facilitating better tracking of STIs.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chlamydial infections, improving data accuracy and facilitating better tracking of STIs.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of chlamydial infections, improving data accuracy and facilitating better tracking of STIs.

Resources

Clinical References

  • •
    CDC Chlamydia Fact Sheet

Coding & Billing References

  • •
    CDC Chlamydia Fact Sheet

Frequently Asked Questions

What are the common symptoms of chlamydial infections?

Common symptoms include abnormal discharge, dysuria, and pelvic pain, but many individuals may be asymptomatic.

How is chlamydia diagnosed?

Chlamydia is diagnosed through nucleic acid amplification tests (NAATs) or culture methods.

What is the recommended treatment for chlamydia?

The recommended treatment typically involves antibiotics such as azithromycin or doxycycline.