herniated disc vs ruptured intervertebral disc

herniated disc and ruptured intervertebral disc both are nouns.

Word	Noun	Adjective	Verb	Adverb
herniated disc	Yes	No	No	No
ruptured intervertebral disc	Yes	No	No	No

As nouns, herniated disc and ruptured intervertebral disc are synonyms defined as:

herniated disc and ruptured intervertebral disc: a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region

Other synonyms of herniated disc include slipped disc.

herniated disc (noun)	ruptured intervertebral disc (noun)
a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region	a painful rupture of the fibrocartilage of the disc between spinal vertebrae; occurs most often in the lumbar region