In simple words: This is a temporary condition where a newborn's thyroid is overactive. It's usually caused by antibodies from the mother and resolves on its own.

Transitory neonatal hyperthyroidism is a temporary condition in newborns characterized by an overactive thyroid gland. This is often due to the passage of maternal thyroid-stimulating antibodies across the placenta.

Example 1: A newborn infant exhibits symptoms such as rapid heart rate, irritability, and poor weight gain.Blood tests reveal elevated thyroid hormones, confirming transitory neonatal hyperthyroidism., A mother with Graves' disease gives birth. Her newborn is tested for hyperthyroidism due to the risk of transplacental transfer of thyroid-stimulating antibodies. The infant is diagnosed with transitory neonatal hyperthyroidism., A newborn is diagnosed with transitory neonatal hyperthyroidism. The infant is monitored closely, and within a few weeks, thyroid hormone levels normalize as the maternal antibodies clear from the infant's system.

Documentation for P72.1 should include evidence of the infant's symptoms, laboratory results confirming elevated thyroid hormone levels (T3 and T4), and any relevant maternal history such as thyroid disease. Additionally, details of the monitoring and management of the condition should be documented.

** Although this condition is usually transient and resolves on its own, in rare cases, treatment might be needed to manage symptoms. Treatment aims to block excess thyroid hormones or slow their production until the maternal antibodies clear.