pediculosis pubis vs lousiness

pediculosis pubis and lousiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
pediculosis pubis	Yes	No	No	No
lousiness	Yes	No	No	No

As nouns, lousiness is a hypernym of pediculosis pubis; that is, lousiness is a word with a broader meaning than pediculosis pubis:

pediculosis pubis: infestation of the pubic hair by crab lice
lousiness: infestation with lice (Pediculus humanus) resulting in severe itching

Other hypernyms of pediculosis pubis include pediculosis.

pediculosis pubis (noun)	lousiness (noun)
infestation of the pubic hair by crab lice	the quality of being disgusting to the senses or emotions
	infestation with lice (Pediculus humanus) resulting in severe itching