Pulmonary hypertension of newborn

This code represents a condition in newborn infants characterized by abnormally high blood pressure in the arteries leading to the lungs. This elevated pressure can restrict blood flow, leading to inadequate oxygenation of the body. It is a serious condition that can result from various underlying causes.

Use this code when documentation explicitly states pulmonary hypertension in a newborn, without specifying an underlying cause. This diagnosis is typically made based on echocardiography findings and clinical presentation of respiratory distress. Supporting documentation should include physician notes detailing the diagnosis and treatment plan.

• Do not use this code if a specific cause of the pulmonary hypertension is identified; instead, code the underlying condition.
• Consider sequencing this code after codes for conditions like meconium aspiration syndrome or congenital diaphragmatic hernia if they are the primary cause.
• Ensure the documentation clearly specifies "newborn" or "neonate" to differentiate from adult pulmonary hypertension.