respiratory disorder vs respiratory disease

respiratory disorder and respiratory disease both are nouns.

Word	Noun	Adjective	Verb	Adverb
respiratory disorder	Yes	No	No	No
respiratory disease	Yes	No	No	No

As nouns, respiratory disorder and respiratory disease are synonyms defined as:

respiratory disorder and respiratory disease: a disease affecting the respiratory system

Other synonyms of respiratory disorder include respiratory illness.

respiratory disorder (noun)	respiratory disease (noun)
a disease affecting the respiratory system	a disease affecting the respiratory system