medical diagnosis vs diagnosis

medical diagnosis and diagnosis both are nouns.

Word	Noun	Adjective	Verb	Adverb
medical diagnosis	Yes	No	No	No
diagnosis	Yes	No	No	No

As nouns, diagnosis is a hypernym of medical diagnosis; that is, diagnosis is a word with a broader meaning than medical diagnosis:

Other hypernyms of medical diagnosis include diagnosing.

medical diagnosis (noun)	diagnosis (noun)
identification of a disease from its symptoms	identifying the nature or cause of some phenomenon