ICD-10 Code L70.4 – Infantile acne (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code L70.4 – Infantile acne
What it is
L70.4 identifies infantile acne, an acneiform skin condition seen in infants. It is used when documentation specifically states acne in early childhood rather than a broader rash or neonatal skin finding.
Clinical signs
Clinical features vary; refer to documentation. Typical notes may describe comedones, papules, or pustules on the face, especially the cheeks, forehead, or chin.
When to use this code
Use L70.4 when the provider documents infantile acne as the diagnosis. It may appear in outpatient, dermatology, or pediatric records when the skin findings are assessed as acne rather than infection or dermatitis. If the note is unclear, check documentation.
Do not use for
Do not use this code for neonatal acne, acne vulgaris in older patients, or nonspecific infant skin eruptions. If the record does not clearly identify infantile acne, do not assume this code.
Coding tip
Code only when the provider explicitly names infantile acne; otherwise query or check documentation.