Alkalosis of newborn

This code describes an abnormal increase in the alkalinity of a newborn's blood (pH > 7.45), which can be metabolic or respiratory in origin. It reflects an imbalance in the acid-base regulation system specific to the neonatal period. This condition can lead to various clinical manifestations, including neurological and cardiac issues.

Assign this code when documentation clearly indicates a diagnosis of alkalosis in a neonate, typically within the first 28 days of life. Supporting documentation should include blood gas analysis results confirming elevated pH and potentially elevated bicarbonate (metabolic) or decreased PaCO2 (respiratory). This code is appropriate for both symptomatic and asymptomatic cases identified through laboratory findings.

• Differentiate between metabolic and respiratory alkalosis if specified in the documentation, though this code does not differentiate further.
• Ensure the patient's age meets the newborn criteria (0-28 days) for appropriate code assignment.
• Investigate and code any underlying causes of the alkalosis, such as pyloric stenosis or hyperventilation, as additional diagnoses.