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ICD-10 Guide
ICD-10 CodesA52.75

A52.75

Syphilis of kidney and ureter

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

Code Description

ICD-10 A52.75 is a billable code used to indicate a diagnosis of syphilis of kidney and ureter.

Key Diagnostic Point:

Syphilis of the kidney and ureter is a rare manifestation of tertiary syphilis, which occurs when the Treponema pallidum bacterium, responsible for syphilis, spreads to the renal system. This condition can lead to significant renal impairment and complications if left untreated. The infection may cause renal parenchymal damage, ureteral obstruction, and can mimic other renal pathologies. Patients may present with symptoms such as flank pain, hematuria, and renal failure. Diagnosis typically involves serological testing for syphilis, imaging studies to assess renal structure, and possibly renal biopsy. Treatment primarily involves the administration of antibiotics, particularly penicillin, which is effective against Treponema pallidum. Early detection and treatment are crucial to prevent irreversible kidney damage and systemic complications. Contact tracing is essential in managing syphilis, as it is a sexually transmitted infection (STI), and partners should be notified and tested to prevent further transmission.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Rarity of the condition makes it less familiar to coders.
  • Requires understanding of both syphilis and renal pathology.
  • Potential for misclassification with other renal diseases.
  • Need for comprehensive documentation of sexual history and contact tracing.

Audit Risk Factors

  • Inadequate documentation of sexual history.
  • Failure to document contact tracing efforts.
  • Misdiagnosis or misclassification of renal symptoms.
  • Lack of follow-up documentation on treatment efficacy.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including sexual history and previous STIs, serological test results, and treatment plans.

Common Clinical Scenarios

Patients presenting with atypical renal symptoms and a history of syphilis.

Billing Considerations

Ensure comprehensive documentation of contact tracing and partner notification.

Nephrology

Documentation Requirements

Renal function tests, imaging studies, and any interventions performed.

Common Clinical Scenarios

Patients with renal impairment and a known history of syphilis.

Billing Considerations

Document the correlation between syphilis and renal symptoms clearly.

Coding Guidelines

Inclusion Criteria

Use A52.75 When
  • According to ICD
  • 10 guidelines, A52
  • 75 should be used when syphilis specifically affects the kidney and ureter
  • It is important to document the stage of syphilis and any related complications

Exclusion Criteria

Do NOT use A52.75 When
  • Exclusion criteria include renal conditions not caused by syphilis

Related CPT Codes

86592CPT Code

Syphilis test, non-treponemal

Clinical Scenario

Used for screening and diagnosis of syphilis in patients with renal symptoms.

Documentation Requirements

Document the reason for testing and any previous syphilis history.

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 conditions like A52.75, improving the accuracy of data collection and treatment tracking for syphilis-related complications.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of conditions like A52.75, improving the accuracy of data collection and treatment tracking for syphilis-related complications.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of conditions like A52.75, improving the accuracy of data collection and treatment tracking for syphilis-related complications.

Resources

Clinical References

  • •
    CDC Syphilis Treatment Guidelines

Coding & Billing References

  • •
    CDC Syphilis Treatment Guidelines

Frequently Asked Questions

What are the common symptoms of syphilis affecting the kidneys?

Common symptoms include flank pain, hematuria, and signs of renal impairment such as changes in urination or swelling.