P74.6
BillableTransitory hyperammonemia of newborn
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A temporary condition in newborns where ammonia levels in the blood become abnormally elevated, typically resolving on its own as the newborn's liver matures.
Coding Tips
- •Ensure ammonia levels are documented in the medical record to justify this diagnosis
- •Monitor for symptoms like lethargy or poor feeding, and distinguish from primary urea cycle disorders
Code Hierarchy
└P74Other transitory neonatal electrolyte and metabolic disturbances└P74.6Transitory hyperammonemia of newborn
└P74.6Transitory hyperammonemia of newborn