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ICD-10 Guide
ICD-10 CodesA56.4

A56.4

Chlamydial female pelvic inflammatory disease

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

Code Description

ICD-10 A56.4 is a billable code used to indicate a diagnosis of chlamydial female pelvic inflammatory disease.

Key Diagnostic Point:

Chlamydial female pelvic inflammatory disease (PID) is an infection of the female reproductive organs caused by the bacterium Chlamydia trachomatis. This condition often arises from untreated chlamydial infections, which are common sexually transmitted infections (STIs). PID can lead to serious complications, including chronic pelvic pain, infertility, and ectopic pregnancy. Symptoms may include lower abdominal pain, fever, unusual vaginal discharge, and pain during intercourse. Diagnosis typically involves a combination of clinical evaluation, laboratory testing for chlamydia, and imaging studies if necessary. Treatment usually consists of antibiotics, and it is crucial to treat sexual partners to prevent reinfection. Regular screening for STIs is recommended for sexually active women under 25 and those with risk factors. Effective management of chlamydial PID requires a comprehensive approach, including patient education on safe sex practices and the importance of follow-up care.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between acute and chronic PID
  • Need for accurate documentation of symptoms and treatment
  • Potential for co-infection with other STIs
  • Variability in clinical presentation among patients

Audit Risk Factors

  • Inadequate documentation of symptoms and treatment
  • Failure to document patient education on STI prevention
  • Lack of follow-up care records
  • Inconsistent coding of related conditions

Specialty Focus

Medical Specialties

Gynecology

Documentation Requirements

Detailed patient history, physical examination findings, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of PID, routine STI screenings, and treatment of chlamydial infections.

Billing Considerations

Ensure documentation reflects the severity of symptoms and any complications.

Infectious Disease

Documentation Requirements

Comprehensive records of laboratory results, treatment regimens, and follow-up care.

Common Clinical Scenarios

Management of complex cases with multiple STIs and chronic infections.

Billing Considerations

Document any co-infections and their impact on treatment outcomes.

Coding Guidelines

Inclusion Criteria

Use A56.4 When
  • According to the official coding guidelines, A56
  • 4 should be used when the diagnosis of chlamydial PID is confirmed
  • It is essential to document the clinical findings, treatment provided, and any follow
  • up care

Exclusion Criteria

Do NOT use A56.4 When
  • Exclusion criteria include cases where PID is caused by other pathogens or when the diagnosis is not confirmed

Related CPT Codes

87591CPT Code

Chlamydia trachomatis and Neisseria gonorrhoeae nucleic acid detection

Clinical Scenario

Used for testing in patients suspected of having chlamydial PID.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Gynecologists should ensure proper coding for STI screenings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of chlamydial PID, improving the accuracy of data collection and reimbursement processes. It emphasizes the importance of detailed documentation and the management of STIs.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of chlamydial PID, improving the accuracy of data collection and reimbursement processes. It emphasizes the importance of detailed documentation and the management of STIs.

Reimbursement & Billing Impact

reimbursement processes. It emphasizes the importance of detailed documentation and the management of STIs.

Resources

Clinical References

  • •
    CDC Chlamydia Treatment Guidelines

Coding & Billing References

  • •
    CDC Chlamydia Treatment Guidelines

Frequently Asked Questions

What are the common symptoms of chlamydial PID?

Common symptoms include lower abdominal pain, fever, unusual vaginal discharge, and pain during intercourse. Some women may be asymptomatic.

How is chlamydial PID diagnosed?

Diagnosis is typically made through a combination of clinical evaluation, laboratory testing for chlamydia, and imaging studies if necessary.

What is the recommended treatment for chlamydial PID?

Treatment usually involves a course of antibiotics, and it is essential to treat sexual partners to prevent reinfection.

Why is contact tracing important in managing chlamydial PID?

Contact tracing helps to identify and treat sexual partners, reducing the risk of reinfection and further transmission of the infection.