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ICD-10 Guide
ICD-10 CodesA56.01

A56.01

Chlamydial cystitis and urethritis

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

Code Description

ICD-10 A56.01 is a billable code used to indicate a diagnosis of chlamydial cystitis and urethritis.

Key Diagnostic Point:

Chlamydial cystitis and urethritis is an infection caused by the bacterium Chlamydia trachomatis, which is a common sexually transmitted infection (STI). This condition primarily affects the urinary tract, leading to inflammation of the bladder (cystitis) and the urethra (urethritis). Patients may present with symptoms such as dysuria (painful urination), increased urinary frequency, urgency, and lower abdominal discomfort. In some cases, the infection can be asymptomatic, particularly in women. If left untreated, chlamydial infections can lead to serious complications, including pelvic inflammatory disease (PID) in women, which can result in infertility. Diagnosis is typically made through nucleic acid amplification tests (NAATs) or urine tests. Treatment usually involves antibiotics, such as azithromycin or doxycycline, and it is crucial to treat sexual partners to prevent reinfection. Contact tracing is an essential component of managing STIs, ensuring that all potentially exposed individuals are tested and treated appropriately to reduce transmission rates.

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 presentation among different populations

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to document treatment plans
  • Omission of partner treatment information
  • Misclassification of the infection type

Specialty Focus

Medical Specialties

Urology

Documentation Requirements

Detailed patient history, including sexual history and symptomatology, as well as treatment plans.

Common Clinical Scenarios

Patients presenting with dysuria, urinary frequency, or pelvic pain.

Billing Considerations

Ensure documentation reflects the specific type of infection and any complications.

Gynecology

Documentation Requirements

Comprehensive documentation of pelvic exams, STI screening results, and treatment plans.

Common Clinical Scenarios

Women presenting with pelvic pain, abnormal discharge, or urinary symptoms.

Billing Considerations

Consideration of potential complications such as PID and the need for partner notification.

Coding Guidelines

Inclusion Criteria

Use A56.01 When
  • According to the ICD
  • CM coding guidelines, A56
  • 01 should be used when the diagnosis of chlamydial cystitis and urethritis is confirmed
  • It is important to document the specific symptoms and any relevant sexual history

Exclusion Criteria

Do NOT use A56.01 When
  • Exclusions include cases where the infection is not confirmed or where another cause of cystitis or urethritis is identified

Related CPT Codes

87491CPT Code

Chlamydia trachomatis test

Clinical Scenario

Used when testing for chlamydial infection in symptomatic patients.

Documentation Requirements

Document the reason for testing and any symptoms present.

Specialty Considerations

Urologists and 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 infections, improving the accuracy of data collection and treatment tracking. A56.01 provides a clear distinction between different types of chlamydial infections, facilitating better patient management and epidemiological tracking.

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. A56.01 provides a clear distinction between different types of chlamydial infections, facilitating better patient management and epidemiological tracking.

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. A56.01 provides a clear distinction between different types of chlamydial infections, facilitating better patient management and epidemiological tracking.

Resources

Clinical References

  • •
    CDC Guidelines for the Treatment of Sexually Transmitted Infections

Coding & Billing References

  • •
    CDC Guidelines for the Treatment of Sexually Transmitted Infections

Frequently Asked Questions

What are the common symptoms of chlamydial cystitis and urethritis?

Common symptoms include painful urination, increased urinary frequency, urgency, and lower abdominal pain. Some individuals may be asymptomatic.

How is chlamydial cystitis and urethritis treated?

Treatment typically involves antibiotics such as azithromycin or doxycycline. It is important to treat sexual partners to prevent reinfection.

What is the importance of contact tracing in managing chlamydial infections?

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