Neonatal infective mastitis

This code describes an inflammatory condition of the breast tissue in a newborn, specifically caused by an infection. It presents as a localized infection, often bacterial, within the mammary gland of an infant.

Use this code when documentation clearly indicates an infection of the breast in a neonate, typically presenting with redness, swelling, warmth, and tenderness. This diagnosis is supported by clinical signs of infection and may be confirmed by culture results or response to antibiotic therapy.

• Differentiate from non-infectious breast conditions in newborns, such as breast engorgement, which are coded differently.
• Ensure the documentation specifies "infective" mastitis to avoid confusion with non-infective forms.
• Consider any associated systemic infections or sepsis in the newborn and code them accordingly as secondary diagnoses.