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ICD-10 Guide
ICD-10 CodesB37.2

B37.2

Candidiasis of skin and nail

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

Code Description

ICD-10 B37.2 is a billable code used to indicate a diagnosis of candidiasis of skin and nail.

Key Diagnostic Point:

Candidiasis of the skin and nails is a fungal infection caused by Candida species, most commonly Candida albicans. This condition typically manifests as red, itchy, and inflamed skin, often accompanied by a white, curd-like discharge. In the case of nail involvement, it can lead to discoloration, thickening, and separation of the nail from the nail bed. Candidiasis can occur in various body areas, including the groin, armpits, and under the breasts, as well as on the nails. The infection is more prevalent in individuals with compromised immune systems, such as those with diabetes, HIV/AIDS, or those undergoing chemotherapy. Diagnosis is primarily clinical, supported by laboratory tests such as KOH preparations or cultures. Treatment usually involves topical antifungal agents like clotrimazole or miconazole, and in more severe cases, systemic antifungals like fluconazole may be necessary. Proper hygiene and moisture control are critical in preventing recurrence, especially in immunocompromised patients who are at higher risk for persistent infections.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Differentiating between candidiasis and other skin infections.
  • Identifying the specific site of infection (skin vs. nails).
  • Documenting the patient's immunocompromised status.
  • Understanding the various antifungal treatments and their indications.

Audit Risk Factors

  • Inadequate documentation of the infection site.
  • Failure to note the patient's immunocompromised status.
  • Incorrect coding of the type of candidiasis (skin vs. nail).
  • Lack of supporting lab results for diagnosis.

Specialty Focus

Medical Specialties

Dermatology

Documentation Requirements

Detailed description of lesions, location, and treatment response.

Common Clinical Scenarios

Patients presenting with itchy rashes or nail changes.

Billing Considerations

Consideration of differential diagnoses such as psoriasis or eczema.

Infectious Disease

Documentation Requirements

Comprehensive history of immunocompromised conditions and previous infections.

Common Clinical Scenarios

Patients with recurrent candidiasis or those with systemic involvement.

Billing Considerations

Need for thorough documentation of treatment plans and follow-up.

Coding Guidelines

Inclusion Criteria

Use B37.2 When
  • According to ICD
  • 10 guidelines, B37
  • 2 should be used when the infection is confirmed to be candidiasis of the skin or nails
  • It is important to document the specific site of infection and any underlying conditions that may contribute to the patient's susceptibility

Exclusion Criteria

Do NOT use B37.2 When
No specific exclusions found.

Related CPT Codes

11720CPT Code

Debridement of nail

Clinical Scenario

Used when there is significant nail involvement requiring surgical intervention.

Documentation Requirements

Document the extent of nail involvement and reason for debridement.

Specialty Considerations

Dermatology may require additional notes on the condition of the surrounding skin.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of candidiasis, improving the ability to track and manage these infections in various patient populations, particularly those who are immunocompromised.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of candidiasis, improving the ability to track and manage these infections in various patient populations, particularly those who are immunocompromised.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of candidiasis, improving the ability to track and manage these infections in various patient populations, particularly those who are immunocompromised.

Resources

Clinical References

  • •
    CDC - Fungal Diseases

Coding & Billing References

  • •
    CDC - Fungal Diseases

Frequently Asked Questions

What are the common symptoms of candidiasis of the skin and nails?

Common symptoms include redness, itching, and inflammation of the affected area, along with possible discharge. Nail involvement may lead to discoloration and separation from the nail bed.