neonatal hyperbilirubinemia vs hyperbilirubinemia of the newborn

neonatal hyperbilirubinemia and hyperbilirubinemia of the newborn both are nouns.

Word	Noun	Adjective	Verb	Adverb
neonatal hyperbilirubinemia	Yes	No	No	No
hyperbilirubinemia of the newborn	Yes	No	No	No

As nouns, neonatal hyperbilirubinemia and hyperbilirubinemia of the newborn are synonyms defined as:

neonatal hyperbilirubinemia and hyperbilirubinemia of the newborn: a common disorder that is usually due to immaturity of the liver; usually subsides spontaneously

neonatal hyperbilirubinemia (noun)	hyperbilirubinemia of the newborn (noun)
a common disorder that is usually due to immaturity of the liver; usually subsides spontaneously	a common disorder that is usually due to immaturity of the liver; usually subsides spontaneously