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v1.0.0
ICD-10 Guide
ICD-10 CodesB37.4

B37.4

Candidiasis of lung

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

Code Description

ICD-10 B37.4 is a billable code used to indicate a diagnosis of candidiasis of lung.

Key Diagnostic Point:

Candidiasis of the lung, also known as pulmonary candidiasis, is a rare but serious fungal infection primarily caused by the Candida species, most commonly Candida albicans. This condition typically occurs in immunocompromised patients, including those with HIV/AIDS, cancer, or those undergoing immunosuppressive therapy. The infection can manifest as a result of inhalation of airborne spores or through hematogenous spread from other infected sites. Clinically, patients may present with symptoms such as cough, fever, chest pain, and difficulty breathing. Diagnosis is often confirmed through imaging studies, such as chest X-rays or CT scans, and microbiological cultures of respiratory secretions. Treatment usually involves antifungal medications, with fluconazole and amphotericin B being the most commonly used agents. Early diagnosis and appropriate antifungal therapy are crucial for improving outcomes in affected patients, particularly those with weakened immune systems.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of fungal infections and their specific coding guidelines.
  • Differentiation from other pulmonary infections, such as bacterial or viral pneumonia.
  • Documentation must clearly indicate the immunocompromised status of the patient.
  • Potential for misclassification with other candidiasis codes.

Audit Risk Factors

  • Inadequate documentation of immunocompromised status.
  • Failure to provide supporting lab results.
  • Misinterpretation of imaging findings.
  • Incorrect linkage of diagnosis to treatment.

Specialty Focus

Medical Specialties

Pulmonology

Documentation Requirements

Detailed clinical notes on respiratory symptoms, imaging results, and treatment plans.

Common Clinical Scenarios

Patients presenting with respiratory distress and a history of immunosuppression.

Billing Considerations

Ensure that all relevant diagnostic tests are documented to support the diagnosis.

Infectious Disease

Documentation Requirements

Comprehensive history of the patient's immune status and previous infections.

Common Clinical Scenarios

Patients with recurrent infections or those undergoing treatment for malignancies.

Billing Considerations

Documentation should include the rationale for antifungal therapy and any resistance patterns.

Coding Guidelines

Inclusion Criteria

Use B37.4 When
  • According to ICD
  • 10 guidelines, B37
  • 4 should be used when there is clear documentation of candidiasis specifically affecting the lung
  • It is important to note that this code is only applicable when the infection is confirmed and not merely suspected

Exclusion Criteria

Do NOT use B37.4 When
No specific exclusions found.

Related CPT Codes

88305CPT Code

Pathology examination, surgical

Clinical Scenario

When lung biopsy is performed to confirm candidiasis.

Documentation Requirements

Pathology report must indicate the presence of Candida species.

Specialty Considerations

Pulmonologists and pathologists must collaborate on documentation.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of candidiasis, including pulmonary involvement. This specificity aids in better tracking of fungal infections and their management in immunocompromised patients.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of candidiasis, including pulmonary involvement. This specificity aids in better tracking of fungal infections and their management in immunocompromised patients.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of candidiasis, including pulmonary involvement. This specificity aids in better tracking of fungal infections and their management in immunocompromised patients.

Resources

Clinical References

  • •
    CDC - Fungal Diseases

Coding & Billing References

  • •
    CDC - Fungal Diseases

Frequently Asked Questions

What are the common symptoms of candidiasis of the lung?

Common symptoms include cough, fever, chest pain, and difficulty breathing, particularly in immunocompromised patients.

How is candidiasis of the lung diagnosed?

Diagnosis typically involves imaging studies, microbiological cultures, and clinical evaluation of symptoms.

What antifungal treatments are used for candidiasis of the lung?

Common antifungal treatments include fluconazole and amphotericin B, depending on the severity of the infection and the patient's overall health.