Which of the following is a clinical responsibility of a medical assistant?

In which Chapter 20 block will the coder find Place (of occurrence) codes?

a. Y83 – Y84 b. Y90 – Y99 c. X92 – Y09 d. W20 – W49

The typical rate of positive aspiration for an IA nerve block is:

A) 5% to 15% B) 10% to 15% C) 10% to 20% D) 15% to 25%