2025 ICD-10-CM code L98.3
(Active) Effective Date: N/A Revision Date: N/A Skin and subcutaneous tissue disorders - Other disorders of the skin and subcutaneous tissue Diseases of the skin and subcutaneous tissue (L00-L99) Feed
Eosinophilic cellulitis, a skin condition characterized by inflammation and eosinophil infiltration.
Modifiers may be applicable depending on the circumstances of service; consult local guidelines and payer policies.
Medical necessity for coding L98.3 is established by the presence of clinically significant eosinophilic infiltration in the subcutaneous tissue, confirmed through histopathological examination. Treatment is deemed medically necessary when symptoms are causing significant discomfort, functional impairment, or cosmetic concerns.
Diagnosis and management of eosinophilic cellulitis requires a dermatologist or other qualified healthcare professional who can perform a thorough skin examination, order biopsies for histological analysis, and determine appropriate treatment based on the patient's clinical presentation and response to treatment.
- Diseases of the skin and subcutaneous tissue (L00-L99)
- L98 (Other disorders of skin and subcutaneous tissue, not elsewhere classified)
In simple words: Eosinophilic cellulitis is a rare skin condition where the skin becomes inflamed and swollen due to an increase in certain immune cells (eosinophils). It may appear as red, raised, warm, and painful bumps or patches.Doctors usually diagnose it through examination and a tissue sample test. Treatment often involves steroid medications.
Eosinophilic cellulitis [Wells] is a rare inflammatory skin disorder characterized by the infiltration of eosinophils into the subcutaneous tissue. It presents as erythematous, raised, warm, and tender plaques or nodules. The etiology is unknown, but it is believed to be associated with immune-mediated mechanisms.Diagnosis is based on clinical presentation and histopathological examination revealing the presence of eosinophils in the affected tissue. Treatment options typically involve corticosteroids, and in some cases, other immunosuppressive agents.
Example 1: A 45-year-old female presents with tender, erythematous nodules on her arms and legs. Biopsy reveals eosinophilic infiltration, leading to a diagnosis of L98.3.She is treated with oral corticosteroids, showing improvement within a week., A 60-year-old male with a history of inflammatory bowel disease presents with painful plaques on his trunk. Histopathology confirms eosinophilic cellulitis. Treatment consists of topical and systemic corticosteroids, with ongoing monitoring for recurrence., A 28-year-old female with a history of eczema and atopy presents with a flare-up that includes eosinophilic cellulitis of the lower legs.The clinician uses high-potency topical steroids with weekly monitoring.Due to the atopy, a careful consideration of systemic steroid use was performed, which was avoided due to patient history and response to topical therapy.
** Eosinophilic cellulitis is a rare condition.Accurate diagnosis relies on both clinical presentation and histopathological confirmation.The treatment approach may vary depending on disease severity.
- Payment Status: Active
- Modifier TC rule: Not applicable for ICD-10 codes.
- Specialties:Dermatology, Rheumatology, Allergy and Immunology
- Place of Service:Office, Hospital Inpatient, Hospital Outpatient