haemophiliac vs diseased person

haemophiliac and diseased person both are nouns.

Word	Noun	Adjective	Verb	Adverb
haemophiliac	Yes	No	No	No
diseased person	Yes	No	No	No

As nouns, diseased person is a hypernym of haemophiliac; that is, diseased person is a word with a broader meaning than haemophiliac:

haemophiliac: someone who has hemophilia and is subject to uncontrollable bleeding
diseased person: a person suffering from an illness

Other hypernyms of haemophiliac include sick person, sufferer.

haemophiliac (noun)	diseased person (noun)
someone who has hemophilia and is subject to uncontrollable bleeding	a person suffering from an illness