ostomy vs surgical procedure

ostomy and surgical procedure both are nouns.

Word	Noun	Adjective	Verb	Adverb
ostomy	Yes	No	No	No
surgical procedure	Yes	No	No	No

As nouns, surgical procedure is a hypernym of ostomy; that is, surgical procedure is a word with a broader meaning than ostomy:

ostomy: surgical procedure that creates an artificial opening for the elimination of bodily wastes
surgical procedure: a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body

Other hypernyms of ostomy include operation, surgery, surgical operation, surgical process.

ostomy (noun)	surgical procedure (noun)
surgical procedure that creates an artificial opening for the elimination of bodily wastes	a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body