In the Third Character of an ICD-10-PCS Code, the Main

In the third character of an ICD-10-PCS code, the main difference between the definitions of the Root Operations excision and resection is:

A) excision involves cutting out of or off, without replacement, all of a body part, while in a resection the body part is replaced.
B) excision involves cutting out of or off, with replacement, all of a body part; while in a resection all of a body part is cut off but no replaced.
C) excision involves cutting out of or off a portion of a body part; a resection involves cutting all of a body part out of or off.
D) excision involves cutting out of or off a portion of a body part, while a resection involves cutting out of or off all of a body part.