P74.3 Disturbances of potassium balance of newbornNon-billable header with 2 child codes.
775.5 Other transitory neonatal electrolyte disturbances (approximate)P00 Newborn affected by maternal conditions that may be unrelated to present pregnancy ("newborn affected by maternal endocrine and metabolic disorders (P70-P74)")P74.0 Late metabolic acidosis of newbornP74.1 Dehydration of newbornP74.2 Disturbances of sodium balance of newbornP74.21 Hypernatremia of newbornP74.22 Hyponatremia of newbornP74.3 Disturbances of potassium balance of newborn (this code)P74.31 Hyperkalemia of newbornP74.32 Hypokalemia of newbornP74.4 Other transitory electrolyte disturbances of newbornP74.41 Alkalosis of newbornP74.42 Disturbances of chlorine balance of newborn