Neonatal jaundice from breast milk inhibitor

This code represents neonatal jaundice specifically caused by substances in breast milk that inhibit the conjugation and excretion of bilirubin. It is a form of unconjugated hyperbilirubinemia occurring in otherwise healthy, breastfed newborns, typically appearing after the first 3-5 days of life and persisting for several weeks.

Apply this code when documentation clearly indicates jaundice in a breastfed neonate where other causes of hyperbilirubinemia (e.g., ABO incompatibility, hemolysis, sepsis) have been ruled out. The diagnosis is often made clinically based on the infant's feeding history and the pattern of bilirubin elevation.

• Ensure documentation specifies "breast milk" as the cause of jaundice to differentiate from other neonatal jaundice types.
• Do not confuse with physiological jaundice of the newborn (P59.0) or jaundice due to other specified causes (P59.8).
• Sequence this code as the primary diagnosis when it is the reason for the encounter or admission.