mania vs emotional disturbance

mania and emotional disturbance both are nouns.

Word	Noun	Adjective	Verb	Adverb
mania	Yes	No	No	No
emotional disturbance	Yes	No	No	No

As nouns, emotional disturbance is a hypernym of mania; that is, emotional disturbance is a word with a broader meaning than mania:

mania: a mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently
emotional disturbance: any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant

Other hypernyms of mania include affective disorder, emotional disorder, major affective disorder.

mania (noun)	emotional disturbance (noun)
an irrational but irresistible motive for a belief or action	any mental disorder not caused by detectable organic abnormalities of the brain and in which a major disturbance of emotions is predominant
a mood disorder; an affective disorder in which the victim tends to respond excessively and sometimes violently