ICD-10 Code L20.83 – Infantile (acute) (chronic) eczema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L20.83 – Infantile (acute) (chronic) eczema
What it is
L20.83 identifies eczema in infants, also called infantile atopic dermatitis. It describes an inflammatory, itchy skin condition that may be acute or chronic and is documented in young children.
Clinical signs
Typical findings include dry, red, scaly, and itchy patches, often with scratching or irritation. Clinical features vary; refer to documentation for the affected sites and severity.
When to use this code
Use this code when the provider documents infantile eczema, infantile atopic dermatitis, or acute/chronic eczema in an infant. It also fits visits for persistent eczematous rash when the diagnosis is clearly stated in the record.
Confirm the age and diagnosis wording in the chart. If the note only says “rash” or “dermatitis” without identifying infantile eczema, check documentation before coding.
Do not use for
Do not use L20.83 for other eczema types, contact dermatitis, or nonspecific skin rash. If the record does not support infantile eczema, check documentation.
Coding tip
Code the condition only when the provider explicitly links the infant’s skin findings to eczema or atopic dermatitis.