2026 ICD-10-CM Diagnosis Code B37.2Candidiasis of skin and nail
ICD-10-CM Codes›A00–B99›B35-B49›B37
- Billable — Valid for Submission
- Not Chronic
B37.2 is a billable ICD-10-CM diagnosis code for candidiasis of skin and nail. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 606 through 607, 974 through 976. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Fungal infections and Other specified and unspecified skin disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Candidal intertrigo
- Candidal paronychia
- Candidal perionyxis
- Candidiasis of finger web
- Candidiasis of nails
- Candidiasis of nipple
- Candidiasis of skin
- Genitocrural intertrigo
- Genitocrural intertrigo caused by Candida
- Granuloma gluteale infantum
- Intertrigo
- Mucocutaneous candidiasis
- Nipple infection
- Submammary monilia
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Candidal onychia
- Candidal paronychia
Type 2 Excludes
- diaper dermatitis L22
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Candidiasis, candidal - B37.9
- intertrigo - B37.2
- nails - B37.2
- onychia - B37.2
- paronychia - B37.2
- perionyxis - B37.2
- skin - B37.2
- Erosio interdigitalis blastomycetica - B37.2
- candidal (cutaneous) - B37.2
- monilial (cutaneous) - B37.2
- Paronychia - See Also: Cellulitis, digit;
- candidal (chronic) - B37.2
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Candidiasis, candidal
- intertrigo
- Candidiasis, candidal
- nails
- Candidiasis, candidal
- onychia
- Candidiasis, candidal
- paronychia
- Candidiasis, candidal
- perionyxis
- Candidiasis, candidal
- skin
- Erosio interdigitalis blastomycetica
- Granuloma
- candidal (cutaneous)
- Granuloma
- monilial (cutaneous)
- Onychia
- candidal
- Paronychia
- candidal (chronic)
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Intertrigo
a superficial dermatitis occurring on skin surfaces in contact with each other, such as the axillae, neck creases, intergluteal fold, between the toes, etc. obesity is a predisposing factor. the condition is caused by moisture and friction and is characterized by erythema, maceration, burning, and exudation.Chronic Mucocutaneous Candidiasis
mucocutaneous candidiasis that is persistent or long-standing in nature.Mucocutaneous Candidiasis
a fungal infection of the skin, nails, oral and vaginal mucosal sites caused by species of the genus candida. it manifests with white discoloration of the tongue and swelling, redness, and tenderness of the nails.
Patient EducationClinical
Nail Diseases
Your toenails and fingernails protect the tissues of your toes and fingers. They are made up of layers of a hardened protein called keratin, which is also in your hair and skin. The health of your nails can be a clue to your overall health. Healthy nails are usually smooth and consistent in color.
Read the full article at MedlinePlus
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Convert B37.2 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B37.2Overview
Is B37.2 (Candidiasis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report candidiasis of skin and nail on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does B37.2 group to?
When candidiasis of skin and nail is the principal diagnosis on an inpatient stay, it groups to MS-DRG 606, 607, 974, 975, 976, with relative weights from 0.8945 to 2.8860 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of B37.2?
Under the General Equivalence Mappings, candidiasis of skin and nail converts to ICD-9-CM 112.3 (cutaneous candidiasis). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
