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ICD-10 Guide
ICD-10 CodesB48.4

B48.4

Aspergillosis of lung

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

Code Description

ICD-10 B48.4 is a billable code used to indicate a diagnosis of aspergillosis of lung.

Key Diagnostic Point:

Aspergillosis of the lung is a fungal infection caused by the Aspergillus species, primarily Aspergillus fumigatus. This condition can manifest in various forms, including allergic bronchopulmonary aspergillosis (ABPA), chronic pulmonary aspergillosis (CPA), and invasive aspergillosis. Patients with compromised immune systems, such as those with HIV/AIDS, cancer, or those undergoing immunosuppressive therapy, are particularly susceptible to this infection. Symptoms may include cough, hemoptysis, fever, and chest pain. Diagnosis typically involves imaging studies such as CT scans, along with microbiological cultures or serological tests to identify the presence of Aspergillus. Treatment often includes antifungal medications such as voriconazole or amphotericin B, and in some cases, surgical intervention may be necessary to remove infected tissue. The management of aspergillosis is complex, especially in immunocompromised patients, requiring careful monitoring and adjustment of therapy based on clinical response and potential side effects.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between various forms of aspergillosis (e.g., invasive vs. chronic)
  • Need for detailed patient history regarding immunocompromised status
  • Variability in clinical presentation and diagnostic criteria
  • Potential for co-infections or other respiratory conditions

Audit Risk Factors

  • Inadequate documentation of immunocompromised status
  • Failure to specify the type of aspergillosis
  • Lack of evidence for antifungal treatment prescribed
  • Inconsistent coding of related respiratory conditions

Specialty Focus

Medical Specialties

Pulmonology

Documentation Requirements

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

Common Clinical Scenarios

Patients presenting with chronic cough, hemoptysis, or recurrent pneumonia.

Billing Considerations

Ensure clear documentation of the patient's immune status and any prior respiratory conditions.

Infectious Disease

Documentation Requirements

Comprehensive records of diagnostic tests, treatment regimens, and patient follow-up.

Common Clinical Scenarios

Patients with known immunocompromised conditions presenting with respiratory symptoms.

Billing Considerations

Document the rationale for antifungal therapy and any adverse reactions.

Coding Guidelines

Inclusion Criteria

Use B48.4 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the type of aspergillosis and the patient's immune status
  • Include any relevant laboratory results and imaging findings

Exclusion Criteria

Do NOT use B48.4 When
No specific exclusions found.

Related CPT Codes

J8498CPT Code

Voriconazole, oral

Clinical Scenario

Used for outpatient treatment of aspergillosis.

Documentation Requirements

Document the diagnosis, treatment plan, and patient response.

Specialty Considerations

Pulmonology and Infectious Disease specialists should ensure thorough documentation of treatment rationale.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of aspergillosis, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation of the type of aspergillosis and the patient's clinical status.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of aspergillosis, improving the accuracy of data collection and reimbursement processes. It emphasizes the need for detailed documentation of the type of aspergillosis and the patient's clinical status.

Reimbursement & Billing Impact

reimbursement processes. It emphasizes the need for detailed documentation of the type of aspergillosis and the patient's clinical status.

Resources

Clinical References

  • •
    CDC Aspergillosis Information

Coding & Billing References

  • •
    CDC Aspergillosis Information

Frequently Asked Questions

What are the common symptoms of aspergillosis of the lung?

Common symptoms include cough, hemoptysis, fever, chest pain, and difficulty breathing. Symptoms may vary based on the type of aspergillosis and the patient's immune status.