Final answer:
The correct medical suffix used when a procedure involves surgical creation of an artificial opening is -ostomy.
Step-by-step explanation:
The correct medical suffix used when a procedure involves surgical creation of an artificial opening is -ostomy. This suffix is used to describe the surgical procedure of creating a permanent or temporary opening in the body to allow the passage of bodily fluids or waste. For example, a colostomy is a procedure in which a new opening is created in the abdomen to redirect the flow of stool from the colon to a bag on the outside of the body.