Which of the following most certainly would commonly describe upcoding? Responses billing separately for items, procedures, or services that should be billed together under one code billing separately for items, procedures, or services that should be billed together under one code billing for a procedure that is more extensive or intensive that what was actually performed billing for a procedure that is more extensive or intensive that what was actually performed billing for more items, procedures, or services than actually performed billing for more items, procedures, or services than actually performed billing for more than one code for a single item, procedure, or service