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v1.0.0
ICD-10 Guide
ICD-10 CodesA66.8

A66.8

Other specified yaws infections

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

Code Description

ICD-10 A66.8 is a billable code used to indicate a diagnosis of other specified yaws infections.

Key Diagnostic Point:

Yaws is a chronic infectious disease caused by the spirochete Treponema pallidum pertenue, primarily affecting the skin, bones, and cartilage. It is endemic in tropical regions, particularly in parts of Africa, Asia, and the Pacific Islands. The disease is characterized by the formation of skin lesions, which can progress to more severe manifestations if left untreated. Other specified yaws infections may include atypical presentations or complications that do not fit neatly into the standard classifications of yaws. These infections can lead to significant morbidity, particularly in children, and may require specific diagnostic and therapeutic approaches. The clinical presentation can vary widely, and accurate diagnosis often relies on serological testing and clinical evaluation. Treatment typically involves antibiotics, with benzathine penicillin being the first-line therapy. Understanding the geographic distribution and endemic areas is crucial for healthcare providers, as it informs both diagnosis and management strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation
  • Need for serological confirmation
  • Differentiation from other treponemal infections
  • Geographic considerations for endemicity

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document serological test results
  • Misclassification of yaws versus other treponemal infections
  • Lack of clarity on geographic exposure

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

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

Common Clinical Scenarios

Diagnosis and management of yaws in endemic populations, treatment of atypical presentations.

Billing Considerations

Consideration of co-infections and travel history to endemic areas.

Pediatrics

Documentation Requirements

Growth and development assessments, vaccination history, and family history.

Common Clinical Scenarios

Children presenting with skin lesions in endemic regions.

Billing Considerations

Awareness of the impact of yaws on child development and the importance of early intervention.

Coding Guidelines

Inclusion Criteria

Use A66.8 When
  • Follow the official ICD
  • CM coding guidelines for infectious diseases
  • Ensure accurate documentation of the clinical presentation and any serological tests performed

Exclusion Criteria

Do NOT use A66.8 When
  • Exclude other treponemal infections unless specified

Related CPT Codes

86592CPT Code

Syphilis serology

Clinical Scenario

When serological testing is performed to confirm yaws.

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 yaws infections, improving the accuracy of epidemiological data and facilitating targeted public health interventions.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of yaws infections, improving the accuracy of epidemiological data and facilitating targeted public health interventions.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of yaws infections, improving the accuracy of epidemiological data and facilitating targeted public health interventions.

Resources

Clinical References

  • •
    World Health Organization - Yaws

Coding & Billing References

  • •
    World Health Organization - Yaws

Frequently Asked Questions

What are the common symptoms of yaws?

Common symptoms include skin lesions, joint pain, and systemic symptoms like fever. The disease can progress if untreated.