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ICD-10 Guide
ICD-10 CodesB37.8

B37.8

Candidiasis of other sites

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

Code Description

ICD-10 B37.8 is a billable code used to indicate a diagnosis of candidiasis of other sites.

Key Diagnostic Point:

Candidiasis, commonly known as a yeast infection, is caused by the overgrowth of Candida species, particularly Candida albicans. While it is most frequently associated with mucosal surfaces such as the mouth (oral thrush) and vagina, candidiasis can also occur in other sites, leading to B37.8 coding. This condition can manifest in various forms, including cutaneous candidiasis, esophageal candidiasis, and invasive candidiasis, particularly in immunocompromised patients. Factors contributing to candidiasis include antibiotic use, diabetes, hormonal changes, and immunosuppression. In immunocompromised individuals, such as those with HIV/AIDS, cancer, or those undergoing chemotherapy, the risk of developing candidiasis increases significantly. Symptoms may vary depending on the site of infection but often include itching, redness, and discomfort. Diagnosis typically involves clinical evaluation and may be confirmed through laboratory tests, including cultures or histological examination. Treatment usually involves antifungal medications, such as fluconazole or itraconazole, and addressing any underlying conditions that may predispose the patient to infection.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of clinical presentations depending on the site of infection.
  • Need for accurate documentation of the specific site affected.
  • Differentiation from other fungal infections.
  • Potential for co-infections in immunocompromised patients.

Audit Risk Factors

  • Inadequate documentation of the specific site of infection.
  • Failure to note immunocompromised status of the patient.
  • Misclassification of candidiasis as a different fungal infection.
  • Lack of supporting laboratory results.

Specialty Focus

Medical Specialties

Infectious Disease

Documentation Requirements

Detailed clinical notes on the site of infection, patient history, and treatment response.

Common Clinical Scenarios

Patients presenting with recurrent infections, particularly those with underlying immunosuppression.

Billing Considerations

Consideration of co-morbid conditions and potential drug interactions with antifungal treatments.

Dermatology

Documentation Requirements

Photographic evidence of skin lesions, detailed descriptions of lesions, and treatment plans.

Common Clinical Scenarios

Patients with skin manifestations of candidiasis, particularly in intertriginous areas.

Billing Considerations

Differentiation from other dermatological conditions that may mimic candidiasis.

Coding Guidelines

Inclusion Criteria

Use B37.8 When
  • According to ICD
  • 10 coding guidelines, B37
  • 8 should be used when candidiasis is confirmed at a site not specifically listed in other codes
  • Documentation must clearly indicate the site of infection and any relevant patient history

Exclusion Criteria

Do NOT use B37.8 When
No specific exclusions found.

Related CPT Codes

87591CPT Code

Candidiasis culture

Clinical Scenario

Used when a culture is taken to confirm candidiasis.

Documentation Requirements

Document the site of culture and clinical indications.

Specialty Considerations

Infectious disease specialists may require additional lab results.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of candidiasis, enabling better tracking of infection rates and treatment outcomes. B37.8 provides a distinct code for candidiasis at unspecified sites, improving the granularity of data collection.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of candidiasis, enabling better tracking of infection rates and treatment outcomes. B37.8 provides a distinct code for candidiasis at unspecified sites, improving the granularity of data collection.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of candidiasis, enabling better tracking of infection rates and treatment outcomes. B37.8 provides a distinct code for candidiasis at unspecified sites, improving the granularity of data collection.

Resources

Clinical References

  • •
    CDC - Fungal Diseases

Coding & Billing References

  • •
    CDC - Fungal Diseases

Frequently Asked Questions

What are the common sites affected by candidiasis coded under B37.8?

Common sites include the skin, nails, and other mucosal surfaces not specifically coded elsewhere, such as the gastrointestinal tract or respiratory system.