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ICD-10-CM · B37.2GeneralSystemic

Candidal Intertrigo

Candidal intertrigo, also known as intertriginous candidiasis or yeast infection in skin folds, is a common fungal infection affecting skin folds. Learn about diagnosis, clinical documentation, and medical coding for candidal intertrigo (ICD-10 code B37.8) including treatment options and prevention strategies. This resource provides information for healthcare professionals on yeast intertrigo management and best practices.

Also known as
Intertriginous CandidiasisYeast Infection in Skin Foldsyeast intertrigo+1 more
Definition

Fungal skin infection in warm, moist body folds caused by Candida yeast.

Clinical signs

Red, itchy rash with satellite pustules or papules in skin folds like armpits, groin, or under breasts.

Common settings

Obesity, diabetes, antibiotic use, and warm, humid environments.

Related Codes

ICD-10 Code Families

Complete code families applicable to B37.2

B37.1
Candidal stomatitis
B37.2
Candidal vulvovaginitis
B37.8
Other candidiasis
B37.9
Candidiasis, unspecified
Code Comparison

When to use each related code

DescriptionWhen to use
Yeast infection in skin folds.Skin folds red, itchy, satellite lesions. Confirm with KOH.
Bacterial skin fold infection.Skin folds red, painful, may have pus. Consider cultures.
Skin fold irritation, not infection.Red, itchy skin folds, no pus or satellite lesions. Rule out infection.
Documentation

Best-practice checklist

  • Document affected skin folds (location, laterality)
  • Describe lesion morphology (e.g., erythema, maceration)
  • KOH prep or culture confirmation if atypical
  • Document associated symptoms (pruritus, burning)
  • Rule out differential diagnoses (e.g., psoriasis, contact dermatitis)
Coding & Audit Risks

Common pitfalls to avoid

Unspecified Site

Coding candidal intertrigo without specifying the affected body area can lead to claim rejections. Use site-specific ICD-10 codes (e.g., B37.1, B37.8).

Clinical Validation

Lack of proper documentation to support the diagnosis of candidal intertrigo can raise audit red flags. CDI specialists should query for supporting clinical findings.

Rule-Out Diagnosis

Coding candidal intertrigo as confirmed when documented as "rule out" or "suspected" is incorrect and poses compliance risks. Code based on definitive diagnosis.

Mitigation

Best-practice tips

  • 01Reduce skin moisture: Keep folds dry, use absorbent powders.
  • 02Avoid tight clothing: Opt for breathable fabrics like cotton.
  • 03Topical antifungals: Apply as directed by physician (ICD-10 B37.8).
  • 04Weight management: Reduce friction in skin folds (SNOMED CT 700000002).
  • 05Hygiene practices: Cleanse affected areas gently, dry thoroughly.
Clinical Decision Support

Step-by-step checklist

  1. 1

    Confirm intertriginous rash: Location in skin folds (e.g., axillae, groin, inframammary folds)

  2. 2

    Identify hallmark signs: Beefy-red plaques, satellite pustules, maceration

  3. 3

    KOH microscopy: Pseudohyphae and/or budding yeast cells present

  4. 4

    Consider differential diagnoses: Seborrheic dermatitis, psoriasis, contact dermatitis

Documentation Template

Ready-to-paste narrative

Patient presents with intertriginous candidiasis, also known as candidal intertrigo or a yeast infection in skin folds, affecting the [specify location, e.g., axilla, groin, inframammary folds].  The affected area exhibits erythema, maceration, and satellite lesions characteristic of yeast intertrigo.  Patient reports [symptoms, e.g., pruritus, burning, discomfort] exacerbated by friction and moisture.  Clinical examination reveals [detailed findings, e.g., well-demarcated erythematous plaques with peripheral scaling, pustules, or erosions].  Differential diagnoses considered include intertrigo, contact dermatitis, and psoriasis.  Diagnosis of candidal intertrigo is based on clinical presentation and may be confirmed with potassium hydroxide (KOH) preparation demonstrating pseudohyphae and budding yeast.  Treatment plan includes topical antifungal therapy with [specify medication, e.g., clotrimazole, nystatin] applied twice daily for [duration].  Patient education provided on maintaining skin hygiene, keeping the area dry, and avoiding occlusive clothing.  Follow-up scheduled in [timeframe] to assess treatment response and adjust management as needed.  ICD-10 code B37.1 is assigned for candidiasis of skin and nails.  This documentation supports medical necessity for the prescribed treatment.
FAQs

Common questions and answers

How to differentiate candidal intertrigo from other intertriginous dermatoses in primary care?+

Differentiating candidal intertrigo from other intertriginous dermatoses like psoriasis, erythrasma, and contact dermatitis requires careful clinical evaluation. Candidal intertrigo typically presents as erythematous plaques with satellite papules and pustules, often with a glazed appearance, within skin folds like the axillae, groin, inframammary folds, and interdigital spaces. Psoriasis in these areas may lack the typical silvery scale and appear more as smooth, shiny plaques. Erythrasma exhibits coral-red fluorescence under a Wood's lamp, unlike candidal intertrigo. Contact dermatitis often presents with more intense pruritus and vesicles, and its distribution may correlate with allergen exposure. Microscopic examination with KOH preparation can confirm the presence of yeast in candidal intertrigo. Consider implementing a stepwise approach including patient history, visual inspection, Wood's lamp examination, and KOH microscopy for accurate diagnosis. Explore how combining clinical findings with diagnostic tests can improve diagnostic accuracy in intertriginous dermatoses.

What are the most effective topical antifungal treatments for recurrent candidal intertrigo in obese patients?+

Recurrent candidal intertrigo in obese patients presents unique challenges due to persistent skin-on-skin friction and moisture retention. Topical antifungals like nystatin, clotrimazole, ketoconazole, and econazole are effective, but adherence and proper application are crucial. Cream formulations are generally preferred over ointments in intertriginous areas due to their drying effect. For severe or resistant cases, a short course of oral fluconazole may be considered in consultation with a specialist. Addressing underlying predisposing factors like hyperhidrosis and diabetes is essential for long-term management. Explore how weight management strategies and moisture control measures can complement topical antifungal therapy to reduce recurrence rates. Learn more about strategies for optimizing topical antifungal application in obese patients to enhance treatment efficacy.

Which preventive measures can minimize the risk of candidal intertrigo in patients with diabetes?+

Patients with diabetes are at increased risk of candidal intertrigo due to hyperglycemia and impaired immune function. Meticulous hygiene practices, including regular cleansing and thorough drying of skin folds, are crucial. Loose-fitting clothing made of breathable fabrics like cotton can help minimize friction and moisture accumulation. Controlling blood glucose levels through appropriate diabetes management is essential to reduce the risk of infection. Consider implementing strategies for weight management if applicable, as obesity can exacerbate intertrigo. Learn more about the interplay between diabetes control and skin health to empower patients with effective preventive measures. Explore how patient education on proper hygiene and skin care can minimize the risk of candidal intertrigo and improve overall quality of life.

Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.

Coding standard: ICD-10-CM, current FY guidelines.