Assign the ICD-10-CM code for intestinal myiasis

Oxygen cylinders should always be secured and lying down to:

A) prevent the cylinder from igniting. B) prevent leaking of the oxygen. C) maintain good flow of the oxygen to the regulator. D) prevent accidental tipping over of the oxygen bottle.

Which of the following is not a main term in the CPT index?

A. abbreviations B. anatomical site of the procedure C. eponyms D. all of these are main terms