The following questions will require the use of an ICD-9-CM code book to complete the sentence.

Incision of the epididymis is coded to procedure code __________

Nodding and saying "uh-huh," "I see," or "yes" are techniques for what type of listening?

A) Active B) Passive C) Affirmative D) Disinterested

Which of the following are components of a typical O2 blender? 1. Precision metering device or mixture control 2. Audible dual low-pressure alarm system 3. Pressure regulating and equalizing valves 4. Variable-size air-entrainment port

a. 2 and 4 only b. 1, 2, and 3 only c. 3 and 4 only d. 1, 3, and 4 only