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v1.0.0
ICD-10 Guide
ICD-10 CodesB38

B38

Coccidioidomycosis

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

Code Description

ICD-10 B38 is a billable code used to indicate a diagnosis of coccidioidomycosis.

Key Diagnostic Point:

Coccidioidomycosis, commonly known as Valley Fever, is a fungal infection caused by the inhalation of spores from the Coccidioides species, primarily C. immitis and C. posadasii. This disease 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, but in some cases, it can progress to more severe forms, including disseminated disease affecting the skin, bones, and central nervous system. Symptoms may include fever, cough, chest pain, fatigue, and in severe cases, meningitis. The risk of severe disease is significantly higher in immunocompromised patients, such as those with HIV/AIDS, cancer, or those on immunosuppressive therapy. Diagnosis is typically made through clinical evaluation, serological tests, and imaging studies. Treatment often involves antifungal medications such as fluconazole or itraconazole, particularly in cases of severe or disseminated disease. Early recognition and appropriate management are crucial to prevent complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between mild and severe cases
  • Identifying immunocompromised patients
  • Understanding regional prevalence and exposure history
  • Navigating treatment options and their indications

Audit Risk Factors

  • Inadequate documentation of exposure history
  • Failure to specify immunocompromised status
  • Misclassification of mild vs. severe disease
  • Lack of follow-up documentation for treatment response

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed patient history, including travel and exposure history, clinical symptoms, and laboratory results.

Common Clinical Scenarios

Patients presenting with respiratory symptoms after travel to endemic areas, or those with disseminated disease.

Billing Considerations

Ensure documentation reflects the severity of the disease and any underlying immunocompromising conditions.

Pulmonology

Documentation Requirements

Pulmonary function tests, imaging studies, and treatment response documentation.

Common Clinical Scenarios

Patients with chronic cough, chest pain, or pneumonia-like symptoms.

Billing Considerations

Documenting the presence of any underlying lung disease that may complicate the infection.

Coding Guidelines

Inclusion Criteria

Use B38 When
  • Follow the official ICD
  • CM coding guidelines for infectious diseases, ensuring accurate documentation of the patient's clinical status, exposure history, and any comorbid conditions
  • Include relevant laboratory findings and imaging results to support the diagnosis

Exclusion Criteria

Do NOT use B38 When
No specific exclusions found.

Related Codes

Child Codes

10 codes
B38.0
Candidal stomatitis
B38.1
Chronic mucocutaneous candidiasis
B38.2
Candidiasis of other urogenital sites
B38.3
Candidiasis of vulva and vagina
B38.4
Coccidioidomycosis, unspecified
B38.7
Candidiasis of vulva and vagina
B38.8
Other forms of coccidioidomycosis
B38.81
Prostatic coccidioidomycosis
B38.89
Other forms of coccidioidomycosis
B38.9
Coccidioidomycosis, unspecified

Related CPT Codes

87481CPT Code

Coccidioides antibody test

Clinical Scenario

Used to confirm diagnosis in suspected cases of Coccidioidomycosis.

Documentation Requirements

Document the reason for testing and clinical findings.

Specialty Considerations

Infectious disease specialists should ensure comprehensive documentation of clinical context.

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 Coccidioidomycosis, improving the accuracy of epidemiological data and treatment tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of fungal infections, including Coccidioidomycosis, improving the accuracy of epidemiological data and treatment tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of fungal infections, including Coccidioidomycosis, improving the accuracy of epidemiological data and treatment tracking.

Resources

Clinical References

  • •
    CDC Coccidioidomycosis Information

Coding & Billing References

  • •
    CDC Coccidioidomycosis Information

Frequently Asked Questions

What are the common symptoms of Coccidioidomycosis?

Common symptoms include fever, cough, chest pain, fatigue, and in severe cases, skin lesions or neurological symptoms.

How is Coccidioidomycosis treated?

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