Hyperkalemia of newborn

This code signifies an abnormally high potassium level in the bloodstream of a neonate. This electrolyte imbalance can lead to serious cardiac and neuromuscular complications if not promptly addressed.

Apply this code when documentation confirms a newborn diagnosis of hyperkalemia, typically identified through serum electrolyte testing. This diagnosis is often associated with conditions such as renal insufficiency, adrenal insufficiency, or metabolic acidosis in the neonatal period.

• Ensure the documentation clearly specifies "newborn" or "neonatal" hyperkalemia.
• Distinguish from transient hyperkalemia of prematurity, which may have specific management considerations.
• Code any underlying cause of the hyperkalemia, if known and documented, in addition to this code.