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v1.0.0
ICD-10 Guide
ICD-10 CodesB39.0

B39.0

Pulmonary coccidioidomycosis

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

Code Description

ICD-10 B39.0 is a billable code used to indicate a diagnosis of pulmonary coccidioidomycosis.

Key Diagnostic Point:

Pulmonary coccidioidomycosis is a fungal infection caused by the inhalation of spores from 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 range from asymptomatic to severe pulmonary disease, with symptoms including cough, fever, chest pain, and fatigue. In immunocompromised patients, such as those with HIV/AIDS, cancer, or those on immunosuppressive therapy, the risk of disseminated disease is significantly increased. Diagnosis is typically made through clinical evaluation, serological tests, and imaging studies such as chest X-rays or CT scans. Treatment often involves antifungal medications, with fluconazole and itraconazole being the most commonly prescribed. In severe cases, amphotericin B may be indicated. Early recognition and appropriate management are crucial to prevent complications, especially in vulnerable populations.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation among patients.
  • Need for accurate documentation of immunocompromised status.
  • Differentiation from other pulmonary infections.
  • Potential for co-infection with other pathogens.

Audit Risk Factors

  • Inadequate documentation of immunocompromised status.
  • Failure to document the severity of symptoms.
  • Misclassification of the infection type.
  • Lack of follow-up documentation on treatment response.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including travel history and immunocompromised status.

Common Clinical Scenarios

Patients presenting with respiratory symptoms and a history of exposure in endemic areas.

Billing Considerations

Consideration of co-infections and the need for comprehensive treatment plans.

Pulmonology

Documentation Requirements

Pulmonary function tests, imaging studies, and symptom assessment.

Common Clinical Scenarios

Patients with chronic cough and abnormal chest imaging.

Billing Considerations

Monitoring for potential complications such as lung abscesses or disseminated disease.

Coding Guidelines

Inclusion Criteria

Use B39.0 When
  • Follow the official ICD
  • CM coding guidelines for fungal infections, ensuring accurate documentation of the patient's clinical status and any underlying conditions
  • Include relevant history and treatment plans in the medical record

Exclusion Criteria

Do NOT use B39.0 When
No specific exclusions found.

Related CPT Codes

87481CPT Code

Coccidioides antibody test

Clinical Scenario

Used to confirm diagnosis in suspected cases.

Documentation Requirements

Document the reason for testing and clinical findings.

Specialty Considerations

Infectious disease specialists may order this test more frequently.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of fungal infections, improving the accuracy of data collection and reimbursement processes. B39.0 provides a clear distinction for pulmonary involvement, which aids in clinical management and epidemiological tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of fungal infections, improving the accuracy of data collection and reimbursement processes. B39.0 provides a clear distinction for pulmonary involvement, which aids in clinical management and epidemiological tracking.

Reimbursement & Billing Impact

reimbursement processes. B39.0 provides a clear distinction for pulmonary involvement, which aids in clinical management and epidemiological tracking.

Resources

Clinical References

  • •
    CDC - Coccidioidomycosis

Coding & Billing References

  • •
    CDC - Coccidioidomycosis

Frequently Asked Questions

What are the common symptoms of pulmonary coccidioidomycosis?

Common symptoms include cough, fever, chest pain, fatigue, and in severe cases, difficulty breathing. Some patients may be asymptomatic.