Cow's milk hypocalcemia in newborn

This code signifies a newborn's abnormally low calcium levels directly attributable to the ingestion of cow's milk. This condition arises when the infant's immature renal system or gastrointestinal tract cannot adequately process the high phosphate load or low calcium-to-phosphate ratio present in cow's milk, leading to hypocalcemia.

Assign this code when documentation explicitly links neonatal hypocalcemia to the consumption of cow's milk or cow's milk-based formula. This typically occurs in infants fed cow's milk prematurely or in excessive amounts, presenting with symptoms such as jitteriness, seizures, or apnea, and confirmed by laboratory findings of low serum calcium.

• Ensure documentation clearly states the etiology of hypocalcemia as cow's milk intake, distinguishing it from other causes of neonatal hypocalcemia.
• Do not use this code for hypocalcemia due to other nutritional deficiencies or metabolic disorders; those have distinct codes.
• Sequence this code as the principal diagnosis if it is the primary reason for the encounter, or as a secondary diagnosis if it is a co-morbidity being treated.