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ICD-10 Guide
ICD-10 CodesA51.43

A51.43

Secondary syphilitic oculopathy

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

Code Description

ICD-10 A51.43 is a billable code used to indicate a diagnosis of secondary syphilitic oculopathy.

Key Diagnostic Point:

Secondary syphilitic oculopathy is a manifestation of secondary syphilis, which occurs when Treponema pallidum, the bacterium responsible for syphilis, disseminates throughout the body. This condition can lead to various ocular complications, including uveitis, retinitis, and chorioretinitis, which can result in visual impairment or blindness if left untreated. Patients may present with symptoms such as blurred vision, eye pain, and photophobia. Diagnosis typically involves serological testing for syphilis, including non-treponemal tests (e.g., RPR, VDRL) and treponemal tests (e.g., FTA-ABS). Treatment primarily consists of antibiotic therapy, usually with benzathine penicillin G, which is effective in eradicating the infection and preventing further ocular damage. Regular follow-up is essential to monitor visual function and manage any complications that may arise. Contact tracing is crucial in preventing the spread of syphilis, as it is a sexually transmitted infection (STI) that can be transmitted through sexual contact. Education on safe sex practices and the importance of regular STI screenings is vital for at-risk populations.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of syphilis stages and their manifestations.
  • Involves knowledge of ocular conditions related to syphilis.
  • Documentation must clearly link ocular symptoms to syphilis diagnosis.
  • Need for accurate serological test results to support coding.

Audit Risk Factors

  • Inadequate documentation linking ocular symptoms to syphilis.
  • Failure to provide serological test results.
  • Misclassification of syphilis stage.
  • Lack of follow-up documentation on treatment outcomes.

Specialty Focus

Medical Specialties

Ophthalmology

Documentation Requirements

Detailed ocular examination findings, including visual acuity tests and imaging results.

Common Clinical Scenarios

Patients presenting with unexplained vision changes or eye pain, particularly in those with a history of STIs.

Billing Considerations

Ensure that the link between syphilis and ocular symptoms is clearly documented to support coding.

Infectious Disease

Documentation Requirements

Comprehensive patient history, including sexual history and STI screening results.

Common Clinical Scenarios

Patients with confirmed syphilis presenting with systemic symptoms or ocular complaints.

Billing Considerations

Documentation should include treatment plans and follow-up care to ensure continuity of care.

Coding Guidelines

Inclusion Criteria

Use A51.43 When
  • According to ICD
  • 10 coding guidelines, A51
  • 43 should be used when there is clear documentation of secondary syphilis with ocular involvement
  • It is essential to ensure that the diagnosis is confirmed through appropriate serological testing
  • infectious causes

Exclusion Criteria

Do NOT use A51.43 When
  • Exclusion criteria include cases where ocular symptoms are due to other infectious or non

Related CPT Codes

92014CPT Code

Ophthalmological examination, comprehensive, established patient

Clinical Scenario

Used when evaluating a patient with suspected secondary syphilitic oculopathy.

Documentation Requirements

Document visual acuity, ocular health findings, and any relevant history.

Specialty Considerations

Ophthalmologists should ensure thorough documentation of ocular symptoms and their relation to syphilis.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of conditions like secondary syphilitic oculopathy, improving the accuracy of data collection and treatment tracking. This specificity aids in better understanding the epidemiology of syphilis-related ocular conditions.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like secondary syphilitic oculopathy, improving the accuracy of data collection and treatment tracking. This specificity aids in better understanding the epidemiology of syphilis-related ocular conditions.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like secondary syphilitic oculopathy, improving the accuracy of data collection and treatment tracking. This specificity aids in better understanding the epidemiology of syphilis-related ocular conditions.

Resources

Clinical References

  • •
    CDC Syphilis Treatment Guidelines

Coding & Billing References

  • •
    CDC Syphilis Treatment Guidelines

Frequently Asked Questions

What are the common symptoms of secondary syphilitic oculopathy?

Common symptoms include blurred vision, eye pain, photophobia, and visual disturbances. Patients may also experience systemic symptoms associated with secondary syphilis.