From the Research
The ICD-10 code for fungal infections varies depending on the specific type and location of the infection, with the most common general code being B49 for unspecified mycosis (fungal infection). For more specific fungal infections, codes include:
- B35.0-B35.9 for dermatophytosis (ringworm) 1
- B37.0-B37.9 for candidiasis
- B38.0-B38.9 for coccidioidomycosis
- B39.0-B39.9 for histoplasmosis
- B40.0-B40.9 for blastomycosis When coding fungal infections, it's essential to be as specific as possible about the causative organism and the site of infection to ensure accurate medical records and proper billing. For example, onychomycosis (fungal nail infection) is coded as B35.1, while oral thrush is B37.0. The correct coding helps healthcare providers track treatment outcomes and facilitates appropriate medical management of these conditions, which can range from superficial skin infections to serious systemic diseases requiring aggressive antifungal therapy 2. Given the increasing incidence of fungal infections, particularly among immunocompromised patients 3, 4, 5, accurate coding is crucial for effective disease management and prevention of morbidity and mortality. It is also important to note that the COVID-19 pandemic has led to an increase in cases of certain fungal infections, such as tinea faciei, highlighting the need for continued vigilance and accurate coding in the context of emerging public health concerns 1.