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ICD-10 Guide
ICD-10 CodesB37.84

B37.84

Candidal otitis externa

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

Code Description

ICD-10 B37.84 is a billable code used to indicate a diagnosis of candidal otitis externa.

Key Diagnostic Point:

Candidal otitis externa is a fungal infection of the external ear canal caused by Candida species, most commonly Candida albicans. This condition typically presents with symptoms such as itching, redness, swelling, and discharge from the ear. It is often associated with moisture retention in the ear canal, which can occur due to swimming, excessive sweating, or the use of hearing aids. Patients may also experience pain or discomfort, particularly when manipulating the ear. Candidal otitis externa is more prevalent in immunocompromised individuals, including those with diabetes, HIV/AIDS, or those undergoing chemotherapy, as their immune systems are less capable of controlling fungal growth. Diagnosis is primarily clinical, supported by the identification of Candida species through culture or microscopy. Treatment usually involves topical antifungal agents such as clotrimazole or nystatin, and in some cases, oral antifungals may be necessary for more severe infections. Preventive measures include keeping the ears dry and avoiding the insertion of foreign objects into the ear canal.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between candidal and bacterial otitis externa
  • Identifying immunocompromised patients who may present atypically
  • Understanding the various antifungal treatments and their indications
  • Documenting the clinical presentation accurately to support coding

Audit Risk Factors

  • Inadequate documentation of the clinical presentation
  • Failure to document the immunocompromised status of the patient
  • Lack of culture results to support the diagnosis
  • Incorrect coding of the condition as bacterial otitis externa

Specialty Focus

Medical Specialties

Otolaryngology

Documentation Requirements

Detailed clinical notes including symptoms, examination findings, and treatment plan.

Common Clinical Scenarios

Patients presenting with ear pain, itching, or discharge, particularly after swimming or using hearing aids.

Billing Considerations

Ensure to document any underlying conditions that may predispose the patient to fungal infections.

Infectious Disease

Documentation Requirements

Comprehensive history of immunocompromised status and previous infections.

Common Clinical Scenarios

Patients with recurrent ear infections or those with a history of systemic fungal infections.

Billing Considerations

Document any antifungal treatments previously administered and their outcomes.

Coding Guidelines

Inclusion Criteria

Use B37.84 When
  • According to ICD
  • 10 guidelines, B37
  • 84 should be used when the diagnosis of candidal otitis externa is confirmed
  • It is important to document the clinical findings and any relevant laboratory results

Exclusion Criteria

Do NOT use B37.84 When
  • Exclusion criteria include other types of otitis externa not caused by Candida

Related CPT Codes

69210CPT Code

Removal of impacted cerumen

Clinical Scenario

Often performed in conjunction with treatment for otitis externa.

Documentation Requirements

Document the reason for cerumen removal and any associated symptoms.

Specialty Considerations

Otolaryngologists may frequently perform this procedure in patients with ear infections.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of candidal infections, improving the accuracy of data collection and reimbursement processes. B37.84 provides a clear distinction from other types of otitis externa, facilitating better patient management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of candidal infections, improving the accuracy of data collection and reimbursement processes. B37.84 provides a clear distinction from other types of otitis externa, facilitating better patient management.

Reimbursement & Billing Impact

reimbursement processes. B37.84 provides a clear distinction from other types of otitis externa, facilitating better patient management.

Resources

Clinical References

  • •
    CDC - Fungal Diseases

Coding & Billing References

  • •
    CDC - Fungal Diseases

Frequently Asked Questions

What are the common symptoms of candidal otitis externa?

Common symptoms include itching, redness, swelling, and discharge from the ear, often accompanied by pain or discomfort.

How is candidal otitis externa treated?

Treatment typically involves topical antifungal medications such as clotrimazole or nystatin, and in severe cases, oral antifungals may be prescribed.

Who is at risk for developing candidal otitis externa?

Individuals who are immunocompromised, such as those with diabetes or HIV, are at higher risk, as well as those with excessive moisture in the ear canal.