Seborrheic infantile dermatitis

This code represents a common, non-contagious inflammatory skin condition affecting infants, characterized by greasy, yellowish scales and crusts, often on the scalp (cradle cap), face, and diaper area. It is a benign, self-limiting condition typically resolving within the first year of life.

Use this code for documented cases of seborrheic dermatitis specifically diagnosed in an infant. Documentation should clearly indicate the patient's age (infant) and the characteristic clinical presentation of seborrheic dermatitis. This code is appropriate when the condition is localized or generalized across typical infantile seborrheic areas.

• Ensure documentation specifies "infantile" to differentiate from adult seborrheic dermatitis (L21.0, L21.8, L21.9).
• Do not use for diaper rash solely due to irritation; consider L22 for diaper dermatitis.
• If a secondary infection is present, code the infection separately in addition to this code.