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ICD-10 Guide
ICD-10 CodesA52.77

A52.77

Syphilis of bone and joint

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

Code Description

ICD-10 A52.77 is a billable code used to indicate a diagnosis of syphilis of bone and joint.

Key Diagnostic Point:

Syphilis of bone and joint is a rare manifestation of tertiary syphilis, which occurs when the Treponema pallidum bacterium, responsible for syphilis, invades the skeletal system. This condition typically arises after a prolonged period of untreated syphilis, often years after the initial infection. Patients may present with bone pain, swelling, and deformities, particularly in the long bones and joints. Radiological findings may reveal osteitis, osteomyelitis, or periostitis. The diagnosis is confirmed through serological tests, including non-treponemal tests (e.g., RPR, VDRL) and treponemal tests (e.g., FTA-ABS). Treatment involves the administration of high-dose penicillin, which is effective in eradicating the infection and alleviating symptoms. Early detection and treatment are crucial to prevent further complications, including significant joint damage and systemic involvement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of syphilis stages and manifestations.
  • Differentiation from other bone and joint conditions.
  • Need for accurate serological test interpretation.
  • Potential for co-infection with other STIs.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to document serological test results.
  • Misclassification of syphilis stage.
  • Lack of follow-up treatment documentation.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed history of syphilis infection, treatment history, and serological test results.

Common Clinical Scenarios

Patients presenting with bone pain and a history of untreated syphilis.

Billing Considerations

Ensure comprehensive documentation of all symptoms and treatment responses.

Orthopedics

Documentation Requirements

Radiological findings, surgical notes if applicable, and treatment plans.

Common Clinical Scenarios

Patients with joint deformities or chronic pain attributed to syphilis.

Billing Considerations

Document any surgical interventions or orthopedic assessments thoroughly.

Coding Guidelines

Inclusion Criteria

Use A52.77 When
  • Follow the official ICD
  • CM coding guidelines for infectious diseases, ensuring accurate documentation of the condition's progression and treatment
  • Include any relevant co
  • morbidities and complications

Exclusion Criteria

Do NOT use A52.77 When
No specific exclusions found.

Related CPT Codes

99214CPT Code

Established patient office visit, level 4

Clinical Scenario

Used for follow-up visits after initial diagnosis and treatment of syphilis of bone and joint.

Documentation Requirements

Document history, examination findings, and treatment response.

Specialty Considerations

Infectious disease specialists should ensure comprehensive documentation of the patient's history.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

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

ICD-9 vs ICD-10

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

Reimbursement & Billing Impact

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

Resources

Clinical References

  • •
    CDC Syphilis Treatment Guidelines

Coding & Billing References

  • •
    CDC Syphilis Treatment Guidelines

Frequently Asked Questions

What are the common symptoms of syphilis of bone and joint?

Common symptoms include bone pain, joint swelling, and deformities, often accompanied by a history of untreated syphilis.

How is syphilis of bone and joint treated?

Treatment typically involves high-dose penicillin, which is effective in eradicating the infection and alleviating symptoms.