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ICD-10 Guide
ICD-10 CodesB43.2

B43.2

ICD-10 title: Pulmonary blastomycosis

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

Code Description

ICD-10 B43.2 is a billable code used to indicate a diagnosis of icd-10 title: pulmonary blastomycosis.

Key Diagnostic Point:

Pulmonary blastomycosis is a fungal infection caused by the organism Blastomyces dermatitidis, primarily affecting the lungs. This condition is endemic in certain regions, particularly in the Midwest and Southeastern United States, where the fungus thrives in moist soil and decaying organic matter. Patients may present with a range of respiratory symptoms, including cough, chest pain, fever, and difficulty breathing. The infection can be acute or chronic and may mimic other pulmonary conditions such as tuberculosis or lung cancer. Diagnosis is typically confirmed through culture, serology, or histopathological examination of tissue samples. Immunocompromised individuals, such as those with HIV/AIDS, cancer, or those on immunosuppressive therapy, are at a higher risk for severe manifestations of the disease. Treatment usually involves antifungal medications, with itraconazole and amphotericin B being the most commonly used agents. Early diagnosis and appropriate treatment are crucial to prevent complications, including dissemination of the infection to other organs.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation among patients
  • Need for laboratory confirmation for accurate diagnosis
  • Differentiation from other pulmonary conditions
  • Potential for co-infection in immunocompromised patients

Audit Risk Factors

  • Inadequate documentation of clinical findings
  • Failure to document laboratory confirmation
  • Misclassification of the severity of the disease
  • Inconsistent coding of antifungal treatments

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

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

Common Clinical Scenarios

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

Billing Considerations

Ensure documentation includes immunocompromised status and response to treatment.

Pulmonology

Documentation Requirements

Comprehensive pulmonary function tests and imaging studies.

Common Clinical Scenarios

Patients with chronic cough and abnormal chest imaging.

Billing Considerations

Document differential diagnoses to support coding.

Coding Guidelines

Inclusion Criteria

Use B43.2 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the diagnosis, treatment, and any complications
  • Include relevant history of exposure and immunocompromised status

Exclusion Criteria

Do NOT use B43.2 When
No specific exclusions found.

Related CPT Codes

87481CPT Code

Fungal culture

Clinical Scenario

Used to confirm diagnosis of pulmonary blastomycosis.

Documentation Requirements

Document the type of culture performed and results.

Specialty Considerations

Infectious disease specialists should ensure accurate reporting of culture results.

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 for conditions like pulmonary blastomycosis.

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 for conditions like pulmonary blastomycosis.

Reimbursement & Billing Impact

reimbursement processes for conditions like pulmonary blastomycosis.

Resources

Clinical References

  • •
    CDC - Blastomycosis

Coding & Billing References

  • •
    CDC - Blastomycosis

Frequently Asked Questions

What are the common symptoms of pulmonary blastomycosis?

Common symptoms include cough, chest pain, fever, and difficulty breathing. Some patients may also experience weight loss and night sweats.

How is pulmonary blastomycosis diagnosed?

Diagnosis is typically made through culture, serological tests, or histopathological examination of tissue samples.

What is the treatment for pulmonary blastomycosis?

Treatment usually involves antifungal medications such as itraconazole or amphotericin B, depending on the severity of the infection.