2024 ICD-10-CM Diagnosis Code B35.9

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Allergy-sensitivity to fungi syndrome
• Dermatophytosis
• Dermatophytosis caused by Microsporum praecox
• Dermatophytosis co-occurrent with human immunodeficiency virus infection
• Disseminated dermatophytosis
• Disseminated dermatophytosis due to immunodeficiency
• Favus due to Trichophyton gallinae
• Favus due to Trichophyton schoenleinii
• Id reaction
• Steroid-modified tinea infection
• Steroid-modified tinea infection of lower limb
• Tinea caused by Trichophyton persicolor
• Tinea due to Epidermophyton floccosum
• Tinea due to Genus Trichophyton
• Tinea due to Microsporum audouinii
• Tinea due to Microsporum canis variant canis
• Tinea due to Microsporum canis variant distortum
• Tinea due to Microsporum equinum
• Tinea due to Microsporum ferrugineum
• Tinea due to Microsporum gypseum
• Tinea due to Microsporum nanum
• Tinea due to Microsporum vanbreuseghemii
• Tinea due to Nannizzia fulva
• Tinea due to Trichophyton concentricum
• Tinea due to Trichophyton equinum
• Tinea due to Trichophyton megninii
• Tinea due to Trichophyton mentagrophytes
• Tinea due to Trichophyton mentagrophytes variant erinacei
• Tinea due to Trichophyton mentagrophytes variant interdigitale
• Tinea due to Trichophyton rubrum
• Tinea due to Trichophyton simii
• Tinea due to Trichophyton soudanense
• Tinea due to Trichophyton tonsurans
• Tinea due to Trichophyton verrucosum
• Tinea due to Trichophyton violaceum
• Tinea due to Trichophyton yaoundei
• Trichophytosis

Clinical Information

• Deep Seated Dermatophytosis

  a deep folliculitis due to a cutaneous dermatophyte infection, usually on the legs. it is most commonly caused by trichophyton rubrum and is characterized by the formation of spongy granulomas which persist for three to four months and leaves deep scars.

• Dermatophytosis

  a common fungal infection of the stratum corneum of the skin, hair, or nails by a dermatophyte. it is characterized by itching, inflammation, redness of the skin, small papular vesicles, central clearing, fissures, scaling, and/or hair loss in the affected area.

• Dermatophytosis of Groin and Perianal Area

  dermatophytosis involving the stratum corneum of the skin of the groin and perianal area.

• Dermatophytosis of Scalp and Beard

  dermatophytosis involving the stratum corneum of the skin of the scalp and beard area.

B35.9 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert B35.9 to ICD-9-CM

• ICD-9-CM Code: 110.9 - Dermatophytosis site NOS

Patient Education

Fungal Infections

If you have ever had athlete's foot or a yeast infection, you can blame a fungus. A fungus is a primitive organism. Mushrooms, mold and mildew are examples. Fungi live in air, in soil, on plants and in water. Some live in the human body. Only about half of all types of fungi are harmful.

Some fungi reproduce through tiny spores in the air. You can inhale the spores or they can land on you. As a result, fungal infections often start in the lungs or on the skin. You are more likely to get a fungal infection if you have a weakened immune system or take antibiotics.

Fungi can be difficult to kill. For skin and nail infections, you can apply medicine directly to the infected area. Oral antifungal medicines are also available for serious infections.

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.