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ICD-10 Guide
ICD-10 CodesA52.7

A52.7

Late syphilis, unspecified

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

Code Description

ICD-10 A52.7 is a billable code used to indicate a diagnosis of late syphilis, unspecified.

Key Diagnostic Point:

Late syphilis is a stage of syphilis that occurs after the primary and secondary stages, typically characterized by the presence of gummas, cardiovascular syphilis, or neurosyphilis. This stage can manifest years after the initial infection and may present with a variety of systemic symptoms. Patients may experience lesions on the skin, mucous membranes, and internal organs. The condition is caused by the bacterium Treponema pallidum, which is transmitted primarily through sexual contact. Late syphilis can lead to serious complications if left untreated, including damage to the heart, brain, and other organs. Diagnosis is often made through serological testing, and treatment typically involves the administration of penicillin. Due to the potential for severe health consequences, timely identification and management of late syphilis are crucial, particularly in populations at higher risk for sexually transmitted infections (STIs). Contact tracing is essential to prevent further transmission, as individuals with late syphilis may unknowingly transmit the infection to sexual partners.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations that may complicate diagnosis.
  • Need for comprehensive patient history to determine stage of syphilis.
  • Potential for co-infection with other STIs.
  • Variability in serological test results.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to document patient history and risk factors.
  • Lack of evidence for contact tracing efforts.
  • Misclassification of syphilis stage.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, serological test results, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of late syphilis, co-infections with other STIs.

Billing Considerations

Ensure comprehensive documentation of all symptoms and treatment responses.

Primary Care

Documentation Requirements

Thorough documentation of sexual history, risk factors, and follow-up care.

Common Clinical Scenarios

Routine screening for STIs, management of patients with late syphilis.

Billing Considerations

Emphasize the importance of patient education on STI prevention.

Coding Guidelines

Inclusion Criteria

Use A52.7 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the patient's clinical presentation and history
  • Include details of any serological tests performed and treatment administered

Exclusion Criteria

Do NOT use A52.7 When
  • Exclude codes for other specific manifestations of syphilis unless they are documented

Related CPT Codes

86592CPT Code

Syphilis test, non-treponemal

Clinical Scenario

Used for screening and diagnosis of syphilis.

Documentation Requirements

Document the reason for testing and results.

Specialty Considerations

Infectious disease specialists should ensure comprehensive testing.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of syphilis stages, improving the accuracy of epidemiological data and treatment tracking. A52.7 provides a general code for late syphilis, which can be useful in cases where specific manifestations are not documented.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of syphilis stages, improving the accuracy of epidemiological data and treatment tracking. A52.7 provides a general code for late syphilis, which can be useful in cases where specific manifestations are not documented.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of syphilis stages, improving the accuracy of epidemiological data and treatment tracking. A52.7 provides a general code for late syphilis, which can be useful in cases where specific manifestations are not documented.

Resources

Clinical References

  • •
    CDC Syphilis Treatment Guidelines

Coding & Billing References

  • •
    CDC Syphilis Treatment Guidelines

Frequently Asked Questions

What are the common symptoms of late syphilis?

Common symptoms include gummas, cardiovascular issues, and neurological symptoms. Patients may also present with systemic signs such as fever and malaise.

How is late syphilis diagnosed?

Diagnosis is typically made through serological testing and clinical evaluation of symptoms. A thorough patient history is also essential.

What is the treatment for late syphilis?

The standard treatment for late syphilis is benzathine penicillin G, administered intramuscularly. Treatment may vary based on the presence of complications.