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v1.0.0
ICD-10 Guide
ICD-10 CodesB42.8

B42.8

Other forms of coccidioidomycosis

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

Code Description

ICD-10 B42.8 is a billable code used to indicate a diagnosis of other forms of coccidioidomycosis.

Key Diagnostic Point:

Coccidioidomycosis, commonly known as Valley Fever, is a fungal infection caused by the Coccidioides species, primarily C. immitis and C. posadasii. This condition is endemic to certain regions, particularly the southwestern United States, parts of Mexico, and Central and South America. The infection can manifest in various forms, ranging from asymptomatic to severe pulmonary disease, and can disseminate to other organs, particularly in immunocompromised patients. Other forms of coccidioidomycosis may include extrapulmonary manifestations such as meningitis, skin lesions, and bone involvement. Diagnosis is typically made through clinical evaluation, serological tests, and imaging studies. Treatment often involves antifungal medications such as fluconazole or itraconazole, especially in cases of severe or disseminated disease. The management of coccidioidomycosis in immunocompromised patients is particularly challenging due to their increased risk of severe disease and complications. Regular monitoring and adjustment of antifungal therapy are crucial in these populations to prevent progression of the disease.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations requiring careful assessment.
  • Differentiation from other fungal infections.
  • Need for comprehensive patient history, especially regarding immunocompromised status.
  • Potential for co-infections that complicate diagnosis.

Audit Risk Factors

  • Inadequate documentation of clinical findings.
  • Failure to specify the form of coccidioidomycosis.
  • Misclassification of the severity of the disease.
  • Lack of follow-up documentation for treatment response.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes including symptoms, diagnostic tests, and treatment plans.

Common Clinical Scenarios

Patients presenting with respiratory symptoms, fever, or disseminated disease.

Billing Considerations

Consideration of immunocompromised status and potential for atypical presentations.

Pulmonology

Documentation Requirements

Pulmonary function tests, imaging studies, and treatment response documentation.

Common Clinical Scenarios

Patients with chronic cough, chest pain, or abnormal imaging findings.

Billing Considerations

Need for thorough evaluation of lung involvement and potential for chronic pulmonary complications.

Coding Guidelines

Inclusion Criteria

Use B42.8 When
  • According to ICD
  • 10 guidelines, B42
  • 8 should be used when the specific form of coccidioidomycosis is not classified elsewhere
  • Coders should ensure that the documentation supports the diagnosis and reflects the specific manifestations of the disease

Exclusion Criteria

Do NOT use B42.8 When
No specific exclusions found.

Related CPT Codes

87481CPT Code

Coccidioides antibody test

Clinical Scenario

Used to confirm diagnosis in suspected cases of coccidioidomycosis.

Documentation Requirements

Document the clinical rationale for testing and results.

Specialty Considerations

Infectious disease specialists should ensure comprehensive evaluation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of coccidioidomycosis, enabling better tracking of disease prevalence and treatment outcomes. This specificity aids in research and improves patient care by allowing for tailored treatment protocols.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of coccidioidomycosis, enabling better tracking of disease prevalence and treatment outcomes. This specificity aids in research and improves patient care by allowing for tailored treatment protocols.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of coccidioidomycosis, enabling better tracking of disease prevalence and treatment outcomes. This specificity aids in research and improves patient care by allowing for tailored treatment protocols.

Resources

Clinical References

  • •
    CDC Coccidioidomycosis Information

Coding & Billing References

  • •
    CDC Coccidioidomycosis Information

Frequently Asked Questions

What are the common symptoms of coccidioidomycosis?

Common symptoms include fever, cough, chest pain, fatigue, and in severe cases, skin lesions or neurological symptoms.

How is coccidioidomycosis treated?

Treatment typically involves antifungal medications such as fluconazole or itraconazole, especially in cases of severe or disseminated disease.