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ICD-10 Guide
ICD-10 CodesB39.5

B39.5

Pulmonary coccidioidomycosis

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

Code Description

ICD-10 B39.5 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 manifest as a mild respiratory illness or progress to more severe forms, including pneumonia, which may lead to chronic pulmonary disease or disseminated coccidioidomycosis in immunocompromised individuals. Symptoms often include cough, fever, chest pain, and fatigue. Diagnosis is typically confirmed through serological tests, culture, or histopathological examination. Treatment options include antifungal medications such as fluconazole or itraconazole, particularly for patients with severe or disseminated disease. Immunocompromised patients, including those with HIV/AIDS, cancer, or those on immunosuppressive therapy, are at a higher risk for severe manifestations of the disease and may require more aggressive treatment and monitoring.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and severity of the disease.
  • 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 the patient's immunocompromised status.
  • Failure to document the severity of the infection.
  • Incorrect coding of related conditions or complications.
  • Lack of clarity in treatment plans and follow-up care.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including travel history and exposure risks, laboratory results, and treatment response.

Common Clinical Scenarios

Patients presenting with respiratory symptoms after travel to endemic areas, or those with chronic cough and fever.

Billing Considerations

Consideration of co-morbid conditions and potential for disseminated disease in immunocompromised patients.

Pulmonology

Documentation Requirements

Pulmonary function tests, imaging studies, and treatment plans.

Common Clinical Scenarios

Patients with chronic cough, hemoptysis, or pneumonia-like symptoms.

Billing Considerations

Monitoring for potential complications such as lung abscesses or cavitary lesions.

Coding Guidelines

Inclusion Criteria

Use B39.5 When
  • According to ICD
  • 10 guidelines, B39
  • 5 should be used when the infection is confirmed and documented
  • It is important to note the patient's immune status and any complications that may arise

Exclusion Criteria

Do NOT use B39.5 When
  • Exclusion criteria include cases where the infection is not confirmed or is due to a different organism

Related CPT Codes

87481CPT Code

Coccidioides antibody test

Clinical Scenario

Used to confirm diagnosis in patients presenting with respiratory symptoms.

Documentation Requirements

Document the reason for testing and results.

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, including pulmonary coccidioidomycosis, which enhances the ability to track and manage these conditions effectively. It has also improved the granularity of data for research and epidemiological studies.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of fungal infections, including pulmonary coccidioidomycosis, which enhances the ability to track and manage these conditions effectively. It has also improved the granularity of data for research and epidemiological studies.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of fungal infections, including pulmonary coccidioidomycosis, which enhances the ability to track and manage these conditions effectively. It has also improved the granularity of data for research and epidemiological studies.

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, and fatigue. Some patients may experience more severe respiratory distress.

How is pulmonary coccidioidomycosis diagnosed?

Diagnosis is typically made through serological tests, imaging studies, and clinical evaluation of symptoms.

What is the treatment for pulmonary coccidioidomycosis?

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