P74.21
BillableHypernatremia of newborn
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A condition where a newborn has abnormally high levels of sodium in their blood.
Coding Tips
- •Confirm sodium levels from laboratory results; typically defined as serum sodium >150 mEq/L in neonates
- •Document the underlying cause such as dehydration, excessive sodium intake, or inadequate free water intake