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2025 ICD-10-CM code P83.4

Breast engorgement in a newborn, also known as noninfective mastitis of the newborn.

Code P83.4 should only be used for newborn infants (first 28 days of life). It should not be used for maternal records. If an infection is present, an additional code should be used to specify the infection.

Not applicable to ICD-10 codes.

Medical necessity is not typically relevant for this condition, as it's usually self-limiting.Documentation focuses on ruling out infection.

Observation and monitoring; reassurance to parents regarding the benign nature of the condition.No specific treatment is usually required unless infection develops.

IMPORTANT:No alternate codes found.

In simple words: Some newborn babies have swollen breasts. This is because of hormones from their mother that are still in their bodies after birth.A milky fluid might come out, but it's harmless and goes away on its own.

P83.4, Breast engorgement of newborn, refers to the swelling of the mammary glands in a newborn infant.This condition is characterized by enlargement and sometimes discharge of a whitish fluid ("witch's milk") from the breasts. It's a result of maternal hormones circulating in the newborn's system after birth, gradually declining but still causing this temporary physiological response. This is a benign condition and typically resolves spontaneously without intervention.

Example 1: A 2-day-old female infant presents with slightly enlarged breasts and a small amount of whitish discharge.The mother is reassured that this is normal and will resolve spontaneously., A 1-week-old male infant is noted to have firm, swollen breasts.The pediatrician explains the hormonal etiology and advises against any intervention., A newborn presents with breast engorgement and signs of infection (redness, warmth, tenderness). The physician will treat the infection appropriately and modify the ICD-10 code to reflect the secondary infection.

Physical examination documenting breast size, consistency, and presence of discharge.Note the absence or presence of any signs of infection.Documentation of parental reassurance and education is vital.

** This condition is physiological and self-limiting.It's important to differentiate it from infectious mastitis, which requires treatment.

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