Polycythemia neonatorum

This code represents polycythemia specifically occurring in a newborn, characterized by an abnormally high red blood cell count or hematocrit. This condition can lead to increased blood viscosity, potentially impairing organ perfusion and function.

Use this code when documentation indicates a neonate has been diagnosed with polycythemia, typically defined as a venous hematocrit greater than or equal to 65%. This diagnosis is often made based on laboratory findings and clinical signs such as plethora, lethargy, or respiratory distress in the newborn period.

• Ensure the documentation clearly specifies the polycythemia is present in a neonate to differentiate from adult forms.
• Look for associated conditions or complications, such as hyperbilirubinemia or hypoglycemia, which may require additional coding.
• Do not confuse with transient tachypnea of the newborn (P22.1) or other respiratory conditions unless polycythemia is explicitly diagnosed as well.