As a case manager working with insurance it is also necessary to:

A$.$

have a general knowledge of the different types of coverage

B$.$

know what some of the common reimbursement mechanisms for health care are and what each means in terms of out$-$of$-$pocket expenses for the patient

C$.$

Know when one must obtain prior authorization before services are rendered and when medical necessity is evident

D$.$

all of the above